TY  - BOOK
AU  - Kanwar, J.S.;Datta, N.P.;Bhumbla, D.R.
TI  - Proceedings of the international symposium on soil fertility evaluation. Vol. 2[editorial board: J.S. Kanwar ; N.P. Datta ; D.R. Bhumbla  
PY  - 1971///
CY  - New Delhi
PB  - Indian Society of Soil Science
KW  - Soil fertility--Congresses
ER  -