H. M. · H. Robert · R. M. · Robert M.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| International Directory of Gay and Lesbian Periodicals | 978-0-89774-297-9 (0-89774-297-4) | 1987 |
| Reference Sources in Science, Engineering, Medicine, and Agriculture: | 978-0-89774-745-5 (0-89774-745-3) | 1994 |