N.R. · n/s · Noel Snyder · R.S. · R. Snyder
Academic Press · Princeton University Press · Union Internationale pour la Conservation de la Nature et de ses Ressources,Switzerland · University of California Press
| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Introduction to the California Condor | Hardcover | 978-0-520-23924-1 | 2005 | Helen A. Snyder |
| Introduction to the California Condor | Paperback | 978-0-520-24256-2 | 2005 | " |
| Parrots: Status Survey and Conservation Action Plan 2000-2004 | Broché | 978-2-8317-0504-0 | 2000 | etc. |
| The California Condor: A Saga of Natural History and Conservation | Hardcover | 978-0-12-654005-5 | 2000 | Helen Snyder |
| The Carolina Parakeet: Glimpses of a Vanished Bird | " | 978-0-691-11795-9 | 2004 | |