Gaya APA

RUDI, H., CARTHY, A, M. (2008). ABC Plus English Grammar : Accurate , Bright, Clear (Cet. 1). Surabaya: Gitamedia Press.

Gaya MLA

RUDI, Hariyono., CARTHY, Andrew, Mc. "ABC Plus English Grammar : Accurate , Bright, Clear". Cet. 1 Surabaya: Gitamedia Press, 2008. Text.