TY  - BOOK
AU  - Mengel, Konrad
AU  - Kirkby, Ernest A.
TI  - Principles of plant Nutrition
SN  - 8181284046
U1  - 681.13 M 52 P 
PY  - 2006///
CY  - New Delhi
PB  - Springer-Verlagg
KW  - Plant Nutrition
ER  -