TY  - BOOK
AU  - Leeson, Steven
TI  - Commercial poultry nutrition
U1  - 636.5 L4 
PY  - 1991///
CY  - Ontario, Canada
PB  - University Books
KW  - Aves de corral
KW  - Nutrición
KW  - Avicultura I. Summer, John D. II.t
ER  -