| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Space: The Free-Market Frontier | Hardcover | 978-1-930865-18-1 (1-930865-18-X) | 2003 |
| Space: The Free-Market Frontier | Paperback | 978-1-930865-19-8 (1-930865-19-8) | 2002 |
E.H. · E. L. · Edward H. · Edward Hudgins · Edward L. · L -H