Gaya APA
Harrison, .
(1981).
Principles of Internal Medicine: Spirochaeta, Mycoplasma, Chlamydia
.
Jakarta:
EGC.
Gaya MLA
Harrison, .
"Principles of Internal Medicine: Spirochaeta, Mycoplasma, Chlamydia".
Jakarta:
EGC,
1981.
Text.