Gaya APA

FREEMAN, D., FREEMAN, J. (2014). HOW TO KEEP CALM AND CARRY ON . JAKARTA: GRAMEDIA PUSTAKA UTAMA.

Gaya MLA

FREEMAN, DANIEL., FREEMAN, JANSON. "HOW TO KEEP CALM AND CARRY ON". JAKARTA: GRAMEDIA PUSTAKA UTAMA, 2014. Umum.