Gaya APA
Guttman, Burton S., Hopkins, Johns W.. (1983).
Understanding biology .
New York:
Harcourt Brace Jovanovich.
Gaya Chicago
Guttman, Burton S., Hopkins, Johns W..
Understanding biology.
New York:
Harcourt Brace Jovanovich,
1983.
Text.
Gaya MLA
Guttman, Burton S., Hopkins, Johns W..
Understanding biology.
New York:
Harcourt Brace Jovanovich,
1983.
Text.
Gaya Turabian
Guttman, Burton S., Hopkins, Johns W..
Understanding biology.
New York:
Harcourt Brace Jovanovich,
1983.
Print.