Gaya APA

Quirk, R., Greenbaum, S. (1983). A university grammar of english/ Randolph Quirk, Sidney Greenbaum . Harlow: ELBS and Longman.

Gaya MLA

Quirk, Randolph., Greenbaum, Sidney. "A university grammar of english/ Randolph Quirk, Sidney Greenbaum". Harlow: ELBS and Longman, 1983. Text.