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.