Gaya APA

Thorn, et al. (1981). Principles Of Internal Medicine : Spirochaeta, Mycoplasma, Chlamydia (9). Jakarta: EGC.

Gaya MLA

Thorn, et al.. Principles Of Internal Medicine : Spirochaeta, Mycoplasma, Chlamydia. 9 Jakarta: EGC, 1981. Text.