Gaya APA

Westheimer, M, F, M, B, M. (2000). Focus On Grammar : An Intermediate Course For References and Practice (2nd.Ed.). : .

Gaya MLA

Westheimer, Marjorie, Fuchs,, Margaret, Bonner,, Miriam. "Focus On Grammar : An Intermediate Course For References and Practice". 2nd.Ed. : , 2000. Text.