APA (7th ed.) Citation

Koh & Tan. (2003). Grammar made easy (2nd ed.). Prentice Hall Pearson.

Chicago Style (17th ed.) Citation

Koh and Tan. Grammar Made Easy. 2nd ed. Petaling Jaya: Prentice Hall Pearson, 2003.

MLA (8th ed.) Citation

Koh and Tan. Grammar Made Easy. 2nd ed. Prentice Hall Pearson, 2003.

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