Healthy pigeons
Subtitle: recognition, prevention and treatment of the major pigeon diseases
By: by Dr. Ludwig Schrag in co-operation with Dr. Hermann Enz and Dr. Hermann Klette ; translation by W. Mehlig in co-operation with Dr. J.J. Horn.
Contributors: Enz, Hermann.; Klette, Hermann.
Publisher: Ludwig Schober
Published: 1974
Place of publication: Hengersberg
Language: eng