APA (7th ed.) Citation

Koh & Tan. (2005). Grammar made easy (3rd ed.). Prentice Hall Pearson.

Chicago Style (17th ed.) Citation

Koh and Tan. Grammar Made Easy. 3rd ed. Petaling Jaya: Prentice Hall Pearson, 2005.

MLA (8th ed.) Citation

Koh and Tan. Grammar Made Easy. 3rd ed. Prentice Hall Pearson, 2005.

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