Gaya APA

Hagen, A, B, S, A, S, A. (2012). Fundamentals of English Grammar Chartbook . : Longman Publishing Group.

Gaya MLA

Hagen, Azar;, Betty, Schrampfer, Azar;, Stacy, A.. "Fundamentals of English Grammar Chartbook". : Longman Publishing Group, 2012. Text.