TY  - GEN
AU  - Singh , Gurdev
AU  - Asokan , S.R.
TI  - Seed replacement rates: performance and problems
SN  - 8120408500
U1  - 631.521 
PY  - 1994///
CY  - New Delhi
PB  - Oxford   and IBH Publishing
KW  - Seeds
ER  -