TY  - BOOK
AU  - Mann, G. E.
TI  - Poultry breeding: : genetics and systems of breeding
T2  - Bulletin
PY  - 1951///
CY  - London
PB  - Ministry of Agriculture and Fisheries
KW  - Aves de corral
KW  - Mejoramiento
KW  - Avicultura
ER  -