TY  - BOOK
AU  - Singa Rao M
AU  - Jayasree,G
AU  - Nagandar,Rao
AU  - Prabhu prasadini,R
TI  - Soil physical constrants and their managment for increasing crop production in Andra pradesh
U1  - 631.43 
CY  - Andrapradesh
PB  - Andhra pradesh agricultural university
ER  -