Advent Publishers · HarperCollins
| title | media type | ISBN-13 | year of publica- tion |
|---|---|---|---|
| Decisive Warfare: A Study in Military Theory | Paperback | 978-1-58715-248-1 | 2001 |
| Modern Science Fiction: Its Meaning and Its Future | Hardcover | 978-0-911682-23-6 | 1979 |
| Science Fiction Today and Tomorrow: A Discursive Symposium | Unknown Binding | 978-0-06-010467-2 | 1974 |
| The Craft of Science Fiction: A Symposium on Writing Science Fiction and Science Fantasy | Paperback | 978-0-06-463457-1 | 1977 |
| The Craft of Science Fiction: A Symposium on Writing Science Fiction and Science Fantasy | Hardcover | 978-0-06-010461-0 | 1976 |