TY  - VF
ED  - Merck Sharp & Dohme
TI  - Porcicultura productiva
PY  - 0000///[197?]
CY  - Mexico : 
PB  - Merck Sharp and Dhome de Mexico
KW  - Swine
KW  - Animal production
N2  - Explanation, tips and research activities from Merck Sharp and Dhome of Mexico in the swine breeding
ER  -