APA (7th ed.) Citation

WALKER, E., & ELSWIRTH, S. (1990). Grammar practice for intermediate students. Binarupa Aksara.

Chicago Style (17th ed.) Citation

WALKER, Elaine, and Steve ELSWIRTH. Grammar Practice for Intermediate Students. Jakarta: Binarupa Aksara, 1990.

MLA (9th ed.) Citation

WALKER, Elaine, and Steve ELSWIRTH. Grammar Practice for Intermediate Students. Binarupa Aksara, 1990.

Warning: These citations may not always be 100% accurate.