H. Hart · M. Hart · Michael H. · Michael Hart
Cambridge University Press · Citadel · Elsevier · Washington Summit Publishers
| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| 100 Hart | Hardcover | 978-0-8065-1068-2 | 1988 | |
| Extraterrestrials: Where Are They? | Paperback | 978-0-521-44803-1 | 1995 | Edited by Ben Zuckerman |
| Extraterrestrials: Where Are They? | " | 978-0-08-026341-0 | 1982 | Ben Zuckerman |
| Extraterrestrials: Where Are They? | Hardcover | 978-0-08-026342-7 | 1982 | " |
| The 100: A Ranking Of The Most Influential Persons In History | Paperback | 978-0-8065-1350-8 | 2000 | |
| The 100: A Ranking of The Most Influential Persons in History | " | 978-0-8065-1057-6 | 1988 | |
| Understanding Human History | Perfect Paperback | 978-1-59368-026-8 | 2007 | |