TY  - BOOK
AU  - Weaver , John E
TI  - Root Development Of Field Crops
U1  - ZbA2 
PY  - 1926///
CY  - London
PB  - Mcgraw Hill Book Company
N1  - Zb mean Botany Page 500-509 (Acc. No. Zb1-Zb343) & Page 578-581 (Acc. No. Zb344-Zb468)
ER  -