Harrison explains the origins of "Roommates" in the 1976 story introduction in "The Best of Harry Harrison". He states that "Roommates" was based upon the ideas and themes found in his 1966 novel "Make Room! Make Room!" but was rewritten almost completely for "Roommates".
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1971 |
|
The Ruins of Earth | G. P. Putnam's Sons | Anthology | 96 |
| December 1971 |
|
The Ruins of Earth | G. P. Putnam's Sons / SFBC | Anthology | 81 |
| 1972 |
|
Above the Human Landscape: A Social Science Fiction Anthology | Goodyear Publishing | Anthology | 312 |
| 1972 |
|
Above the Human Landscape: A Social Science Fiction Anthology | Goodyear Publishing | Anthology | 312 |
| June 1972 |
|
The Ruins of Earth | Berkley Medallion | Anthology | 84 |
| February 1973 |
|
The Ruins of Earth | Hutchinson | Anthology | 117 |
| April 1975 |
|
The Ruins of Earth | Arrow Books | Anthology | 117 |
| October 1975 |
|
Futur année zéro | Casterman | Anthology | 93 |
| 1976 |
|
The Best of Harry Harrison | Orbit / Futura | Collection | 231 |
| June 1976 |
|
The Best of Harry Harrison | Pocket Books | Collection | 229 |
| September 1976 |
|
The Best of Harry Harrison | Sidgwick & Jackson | Collection | |
| November 1976 |
|
Earth in Transit: Science Fiction and Contemporary Problems | Dell Laurel-Leaf | Anthology | 97 |
| 1977 |
|
Elseviers SF omnibus | Elsevier | Anthology | 11 |
| 1979 | No Room for Man: Population and the Future Through Science Fiction | Rowman & Littlefield | Anthology | 123 | |
| August 1979 |
|
No Room for Man: Population and the Future Through Science Fiction | Littlefield, Adams & Co. | Anthology | 123 |
| 1980 |
|
The Best of Harry Harrison | Orbit | Collection | 231 |
| February 1981 |
|
Die letzten Blumen | Bastei Lübbe | Anthology | 124 |
| November 1981 |
|
The Best of Harry Harrison | Timescape / Pocket Books | Collection | 229 |
| November 1981 |
|
The Best of Harry Harrison | Timescape / Pocket Books | Collection | 229 |
| 1985 |
|
The Best of Harry Harrison | Orbit | Collection | 231 |
| January 1985 |
|
Histoires de l'an 2000 | Le Livre de Poche | Anthology | 110 |
| 1988 |
|
The Best of Harry Harrison | Orbit | Collection | 231 |
| May 1991 |
|
The Best of Harry Harrison | Orbit | Collection | 231 |
| March 1993 |
|
Stainless Steel Visions | Tor | Collection | 205 |
| March 1993 |
|
Stainless Steel Visions | Legend | Collection | 205 |
| March 1993 |
|
Stainless Steel Visions | Legend | Collection | 205 |
| February 1994 |
|
Stainless Steel Visions | Tor | Collection | 205 |
| April 1994 |
|
Stainless Steel Visions | Legend | Collection | 205 |
| 1995 |
|
Visionen einer Stahlratte | Heyne | Collection | 293 |
| July 2000 |
|
The Prentice Hall Anthology of Science Fiction and Fantasy | Prentice-Hall | Anthology | 930 |
| June 2001 |
|
50 in 50 | Tor | Collection | 111 |
| November 2002 |
|
50 in 50 | Tor | Collection | 111 |
| 2003 |
|
The Prentice Hall Anthology of Science Fiction and Fantasy | Prentice-Hall | Anthology | 930 |
| October 2012 |
|
Stainless Steel Visions | Gateway / Orion | Collection | |
| 2014 |
|
Visionen einer Stahlratte | Heyne | Collection |