TY  - BOOK
AU  - A.F. Gustafson
TI  - Handbook of fertilizer their source, make-up effects, amd use
SN  - 81-7754-031-9
U1  - Ref. 631.8 G970 C2007 
PY  - 2007///
CY  - India
PB  - Agrobios (India)
ER  -