TY  - BOOK
AU  - Yawalkar, K. S.
AU  - Agraval, J. P.
TI  - Manures and fertilizers
U1  - 631.8 
PY  - 1962///
CY  - Nagpur
PB  - Agri-Horticultural Publishing House
KW  - Fertilisers and manures
ER  -