TY  - BOOK
AU  - Singh, Y.K.
TI  - Teaching of environmental science
SN  - 81-7648-910-7.
U1  - Circ. 333.7 S617t 2005 
PY  - 2005///
CY  - New Delhi : 
PB  - A.P.H. Publishing House, 
KW  - 1. Environmental science--Teaching of
KW  - 2. Environmental education
N1  - Includes index
ER  -