APA Style

Collie, J., Slater, S. (1991). Speaking : STUDENT'S BOOK (v.4 - SB). Yogyakarta: Penerbit Kanisius.

MLA Style

Collie, Joanne., Slater, Stephen. "Speaking : STUDENT'S BOOK". v.4 - SB Yogyakarta: Penerbit Kanisius, 1991. Text.