TY  - BOOK
AU  - Sing, Karan.,
AU  - Purohit, S S.,
TI  - Plant productivity under environmental stress
SN  - 8185031703
U1  - 581.151/SIN 
PY  - 1999///
CY  - Bikaner
PB  - Rajasthan Agricultural University
KW  - Agriculture--Environmental aspects
ER  -