H-O. · H. Opperman · Hal N. Opperman
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Birds of British Columbia and the Pacific Northwest: A Complete Guide | 978-1-927527-56-6 | 2016 | Richard Cannings · Tom Aversa |
| Birds of Southwestern British Columbia | 978-1-894384-96-4 | 2008 | Richard Cannings · Tom Aversa |
| Birds of the Puget Sound Region | 978-0-9640810-2-4 | 2003 | Bob Morse · Tom Aversa |
| J.B. Oudry 1686-1755 | 978-0-295-96014-2 | 1983 | Hal N. Opperman |
| J.B. Oudry: 1686-1755 | 978-0-295-96015-9 | 1983 | |
| J. B. Oudry | 978-2-7118-0207-4 | 1982 | Pierre Rosenberg |
Heritage House Publishing · Heritage House Publishing Co. Ltd. · R. W. Morse Company · RMN · University of Washington Press