Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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