Please note that this is a short excerpt from the last chapter, ''Opening Frontiers'', of the book Interplanetry Flight (1950). This is not the eponymous chapter from this book, or even part of it. So please don't merge with the other piece of the same name and from the same year.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1999 |
|
Greetings, Carbon-Based Bipeds!: A Vision of the 20th Century As It Happened | Voyager | Nonfiction | 102 |
| August 1999 |
|
Greetings, Carbon-Based Bipeds!: Collected Essays 1934-1998 | St. Martin's Press | Nonfiction | 102 |