Gaya APA

HARTMANN, P. (2007). INTERACTIONS 2; READING STUDENT BOOK, 5e (WITH CD) . Singapore: Mc. GRAW HILL.

Gaya MLA

HARTMANN, PAMELA. "INTERACTIONS 2; READING STUDENT BOOK, 5e (WITH CD)". Singapore: Mc. GRAW HILL, 2007. Text.