Cita APA (7th ed.)

Goh Cheng Leong & Sundaram, D. (1980). Practical geography. Oxford University Press.

Cita Chicago (17th ed.)

Goh Cheng Leong i Dickson Sundaram. Practical Geography. Kuala Lumpur: Oxford University Press, 1980.

Cita MLA (9th ed.)

Goh Cheng Leong i Dickson Sundaram. Practical Geography. Oxford University Press, 1980.