TY  - BOOK
AU  - "Yawalkar, K.S. & Agarwal, J.P."
TI  - "Manures and fertilizers, 2nd revised edition"
U1  - 631.8   K7 
PY  - 0000///Nagpur
CY  - 1967
PB  - Agri.-Horticultural Pub.House
ER  -