APA (7th ed.) Citation

English Language Research Services. (1973). Practical English usage: Book 4. Times Education Co. Sdn. Bhd.

Chicago Style (17th ed.) Citation

English Language Research Services. Practical English Usage: Book 4. Selangor: Times Education Co. Sdn. Bhd, 1973.

MLA (8th ed.) Citation

English Language Research Services. Practical English Usage: Book 4. Times Education Co. Sdn. Bhd, 1973.

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