Gaya APA
Biology. (2005).
Boston:
Mc Graw Hill, Higher Education.
Gaya Chicago
Biology.
.
Boston:
Mc Graw Hill, Higher Education,
2005.
.
Gaya MLA
Biology.
.
Boston:
Mc Graw Hill, Higher Education,
2005.
.
Gaya Turabian
Biology.
Boston:
Mc Graw Hill, Higher Education,
2005.
.