Gaya APA

FRIEDMAN, T, L. (2009). HOT, FLAT, and CROWDED (Cet. 1). Jakarta: PT GRAMEDIA USTAKA UTAMA.

Gaya MLA

FRIEDMAN, THOMAS, L. "HOT, FLAT, and CROWDED". Cet. 1 Jakarta: PT GRAMEDIA USTAKA UTAMA, 2009. Text.