Gaya APA

Florin, J. et al ([s.a.]). Garis besar geografi Amerika : lanskap regional Amerika Serikat / Stephen S. Birdsall, John Florin; penerjemah, Gembirasari; editor, Deddy Mulyana (Ed.ke-4). : United States Department Of State.

Gaya MLA

Florin, John. et al. "Garis besar geografi Amerika : lanskap regional Amerika Serikat / Stephen S. Birdsall, John Florin; penerjemah, Gembirasari; editor, Deddy Mulyana". Ed.ke-4 : United States Department Of State, [s.a.]. Skripsi.