Gaya APA
DIAMOND, J.
(900).
GUNS, GERMS, & STEEL (BEDIL, KUMAN, & BAJA)
.
JAKARTA:
KPG ( KEPUSTAKAAN POPULER GRAMEDIA).
Gaya MLA
DIAMOND, JARED.
"GUNS, GERMS, & STEEL (BEDIL, KUMAN, & BAJA)".
JAKARTA:
KPG ( KEPUSTAKAAN POPULER GRAMEDIA),
900.
Text.