Gaya APA
ortora. (2001).
Microbiology an introduction (Seventh).
Canada:
World Student.
Gaya Chicago
ortora.
Microbiology an introduction.
Seventh
Canada:
World Student,
2001.
Text.
Gaya MLA
ortora.
Microbiology an introduction.
Seventh
Canada:
World Student,
2001.
Text.
Gaya Turabian
ortora.
Microbiology an introduction.
Seventh
Canada:
World Student,
2001.
Print.