APA Style
Gerking, Shelby D.. (1969).
Biological System .
London:
W. B. Saunders Company.
Chicago Style
Gerking, Shelby D..
Biological System.
London:
W. B. Saunders Company,
1969.
Text.
MLA Style
Gerking, Shelby D..
Biological System.
London:
W. B. Saunders Company,
1969.
Text.
Turabian Style
Gerking, Shelby D..
Biological System.
London:
W. B. Saunders Company,
1969.
Print.