TY  - BOOK
AU  - Sukhvir Singh Tomar 
TI  - Textbook of population genetics 
SN  - 9789327219572
U1  - 576.58 
PY  - 1998///
CY  - Ludhiana 
PB  - Kalyani publishers 
KW  - Farm animals
KW  - Phenotypic value
KW  - Genotype
KW  - Heterosis
ER  -