APA Style
Ahmad,S.S, Essig, E.O.. (1990).
A Textbook of Intermediate Zoology ( 37th Edition) .
Lahore:
Sheikhsons Publishers.
Chicago Style
Ahmad,S.S, Essig, E.O..
A Textbook of Intermediate Zoology ( 37th Edition).
Lahore:
Sheikhsons Publishers,
1990.
.
MLA Style
Ahmad,S.S, Essig, E.O..
A Textbook of Intermediate Zoology ( 37th Edition).
Lahore:
Sheikhsons Publishers,
1990.
.
Turabian Style
Ahmad,S.S, Essig, E.O..
A Textbook of Intermediate Zoology ( 37th Edition).
Lahore:
Sheikhsons Publishers,
1990.
.