TY  - BOOK
AU  - Carr, V.A.V.,
TI  - Mule and hybrid birds
U1  - 636.686 
PY  - 1959///
CY  - London
PB  - Cage Birds
KW  - Birds
KW  - Breeding
KW  - Bird
KW  - Behavior
KW  - Evolution
KW  - Cage birds
N1  - Includes index
ER  -