TY  - BOOK
AU  - Hajela 
AU  - 
TI  - "Principles, problems & practice of co-operation"
U1  - 158.5 
CY  - Agra
KW  - Co-operation
N1  - Include reference
N2  - Formerly Handbook on breeding of Indian major carps by pituitary hormone injection [1st edition] and Hypophysation of Indian major carps [2nd edition]
ER  -