APA (7th ed.) Citation

Lewis, G. E. D., & Koh, E. K. (1964). A workbook of local geography (1. publ.). Longmans of Malaya.

Chicago Style (17th ed.) Citation

Lewis, Gerwyn Elidor David, and Eng Kiat Koh. A Workbook of Local Geography. 1. publ. Kuala Lumpur: Longmans of Malaya, 1964.

MLA (9th ed.) Citation

Lewis, Gerwyn Elidor David, and Eng Kiat Koh. A Workbook of Local Geography. 1. publ. Longmans of Malaya, 1964.