Gaya APA
IPS Geografi & Kepend. Klas 3. (1985).
Upper Saddle River, NJ:
Penebar Plus.
Gaya Chicago
IPS Geografi & Kepend. Klas 3.
.
Upper Saddle River, NJ:
Penebar Plus,
1985.
Text.
Gaya MLA
IPS Geografi & Kepend. Klas 3.
.
Upper Saddle River, NJ:
Penebar Plus,
1985.
Text.
Gaya Turabian
IPS Geografi & Kepend. Klas 3.
Upper Saddle River, NJ:
Penebar Plus,
1985.
Print.