Gaya APA

Walker,Elaine, ., Elswoth,Steve, . (1990). Grammar Practice for Intermediate Student (3th .ed). Jakarta: Binarupa Aksara.

Gaya MLA

Walker,Elaine, ., Elswoth,Steve, . "Grammar Practice for Intermediate Student". 3th .ed Jakarta: Binarupa Aksara, 1990. Text.