TY  - BOOK
AU  - Tiagi B Ed.
AU  -  Gopal B Ed.
TI  - Teaching of ecology and environmental sciences in
U1  - T:3(U47).2.N7, L8 
PY  - 1978///
CY  - Jaipur
PB  - International Scientific Publications India       
KW  -  Education
KW  - Teaching Techniques
ER  -