Gaya APA
Biology. (1994).
Menlo Park, California:
Addison-Wesley Publishing Company.
Gaya Chicago
Biology.
.
Menlo Park, California:
Addison-Wesley Publishing Company,
1994.
.
Gaya MLA
Biology.
.
Menlo Park, California:
Addison-Wesley Publishing Company,
1994.
.
Gaya Turabian
Biology.
Menlo Park, California:
Addison-Wesley Publishing Company,
1994.
.