Gaya APA

M.A., D, E, S. (2011). Questions & Answers Teenagers (2011). jakarta: PT GRAMEDIA PUSTAKA UTAMA.

Gaya MLA

M.A., Drs., E.B., Surbakti,. "Questions & Answers Teenagers". 2011 jakarta: PT GRAMEDIA PUSTAKA UTAMA, 2011. Text.