Gaya APA

Schamper, A. (1998). Understanding and Using English Grammar Third Edition / Betty Schamper Azar (1nternat1onal). Newyork: Leg Men.

Gaya MLA

Schamper, Azar,Betty. "Understanding and Using English Grammar Third Edition / Betty Schamper Azar". 1nternat1onal Newyork: Leg Men, 1998. Text.