Gaya APA
Sarles, W, B.
(1956).
Microbiology
(
Ed. 2)
.
New York:
Harper & Brothers.
Gaya MLA
Sarles, Willian, Bowen.
"Microbiology".
Ed. 2
New York:
Harper & Brothers,
1956.
Buku PPs Prodi Teknik Kimia.