TY  - BOOK
AU  - Kanwar J.S.
AU  -  Datta N.P. Bains S.S.  Bhumbla D.R.
TI  - International Symposium on Soil Fertility Evaluation Proceedings. Vol. 1
U1  - 631.4206 
PY  - 1971///
CY  - New Delhi
PB  - Indian Society of Soil Science
ER  -