APA Style
Astahana, D, K., Asthana, M.
(2006).
Environmental : Problems and Solutions
(
1)
.
New delhi:
S. CHAND.
MLA Style
Astahana, D., K.., Asthana, Meera.
"Environmental : Problems and Solutions".
1
New delhi:
S. CHAND,
2006.
Text.