Three Worlds to Conquer
| First published | 1964 |
|---|---|
| Series | Sam Hall Universe |
| Publisher | Pyramid Books |
| Format | Paperback |
| Type | Novel |
| Catalog ID | R-994 |
| Cover art | Jack Gaughan |
| Pages | 143 |
| Price | $0.50 |
"A PYRAMID BOOK—First Printing April 1964", no number line.
Front cover painting is credited to Gaughan on the back cover.
Printed in the US
| Year | Reviewer | Publication |
|---|---|---|
| 1965 | P. Schuyler Miller | Analog Science Fact -> Science Fiction, January 1965 |
| 1982 | Brian Stableford | Science Fiction & Fantasy Book Review, #6, July-August 1982 |
| 1982 | Kevin K. Rattan | Vector 109 |
| Title | Year | Publisher | Format | Type | Catalog ID | Cover Artist | Pages | |
|---|---|---|---|---|---|---|---|---|
| Three Worlds to Conquer |
|
1966 | Mayflower-Dell | Paperback | Novel | 8873 | Jacks | 141+[1] |
| Three Worlds to Conquer |
|
1968 | Pyramid Books | Paperback | Novel | X-1875 | Jack Gaughan | 143 |
| Three Worlds to Conquer |
|
1974 | Pyramid Books | Paperback | Novel | 143 | ||
| Three Worlds to Conquer |
|
1974 | Pyramid Books | Paperback | Novel | 143 | ||
| Three Worlds to Conquer |
|
1982 | Sidgwick & Jackson | Hardcover | Novel | Iain McCaig | 182 | |
| Three Worlds to Conquer |
|
1982 | Sphere Books | Paperback | Novel | Ian Craig | 182 | |
| Three Worlds to Conquer |
|
1982 | Sphere Books | Paperback | Novel | Ian Craig | 182 | |
| Three Worlds to Conquer |
|
2011 | Gateway / Orion | eBook | Novel | |||
| Three Worlds to Conquer |
|
2015 | Fiction Hunter Press | eBook | Novel |