Gaya APA

Beaumont, D., Granger, C. (1989). The Heinemann English Grammar; An Intermediate Reference and Practice Book (With Answer Key) . Jordan Hill, Oxford: Heinemann.

Gaya MLA

Beaumont, Digby., Granger, Colin. "The Heinemann English Grammar; An Intermediate Reference and Practice Book (With Answer Key)". Jordan Hill, Oxford: Heinemann, 1989. Text.