Gaya APA
Walker, Burnham S. Et al. (1956).
Chemistry and Human Health .
U. S. A:
McGraw-Hill.
Gaya Chicago
Walker, Burnham S. Et al.
Chemistry and Human Health.
U. S. A:
McGraw-Hill,
1956.
Text.
Gaya MLA
Walker, Burnham S. Et al.
Chemistry and Human Health.
U. S. A:
McGraw-Hill,
1956.
Text.
Gaya Turabian
Walker, Burnham S. Et al.
Chemistry and Human Health.
U. S. A:
McGraw-Hill,
1956.
Print.