Gaya APA
microbiology
.
(1999).
Virginia:
[s.n.].
Gaya Chicago
microbiology
.
4.
Virginia:
[s.n.],
1999.
Text.
Gaya MLA
microbiology
.
4.
Virginia:
[s.n.],
1999.
Text.
Gaya Turabian
microbiology
.
Virginia:
[s.n.],
1999.
Print.