| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Introduction to the California Condor | Hardcover | 978-0-520-23924-1 | 2005 | Noel Snyder |
| Introduction to the California Condor | Paperback | 978-0-520-24256-2 | 2005 | " |
| Raptors of North America: Natural History and Conservation | Hardcover | 978-0-7603-2582-7 | 2006 | " |
| The California Condor: A Saga of Natural History and Conservation | " | 978-0-12-654005-5 | 2000 | Noel F. R. Snyder |
Dr. Helen Snyder · H.S. · Helen A. Snyder · Helen Sanders · Helen Sanderson · Helen Santori · Helen Saunders · Helen Schneider · Helena Schneider · Holm Schneider
Academic Press · Motorbooks · University of California Press