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