Gaya APA

M.A, M, A, P, M, M, E, M. (1991). TOEFL Preparation Guide (Keempat). Singapore: Cliffs Notes.

Gaya MLA

M.A, Michael, A., Pyle,, M.A, Mary, Ellen, Munoz,. "TOEFL Preparation Guide". Keempat Singapore: Cliffs Notes, 1991. Text.