TY  - BOOK
AU  - Singh,BB
TI  - Ugc-Net: Environmental Science: : (Paper II) Exam Guide
SN  - 9789387604674
U1  - 577.07 
PY  - 2021///
CY  - New delhi
PB  - Ramesh Publishing House
KW  - Ugc-Net--Environmental Science
ER  -