Gaya APA
Trivedi,P.R, (1999).
Encyclopaedia of World Environment Vol.2 Basic Environment Laws (Volume 2).
New Delhi:
A.P.H Publishing Corporation.
Gaya MLA
Trivedi,P.R, .
Encyclopaedia of World Environment Vol.2 Basic Environment Laws.
Volume 2
New Delhi:
A.P.H Publishing Corporation,
1999.
Text.