Gaya APA

AZAR, B, S, H, S, A., HARTLE, S. (2006). Basic english grammar (3 rd.Ed). London: Pearson Longman.

Gaya MLA

AZAR, Betty, Schrampfer.;, HAGEN,, Stacy, A., HARTLE, Shelley. "Basic english grammar". 3 rd.Ed London: Pearson Longman, 2006. Text.