Goh Cheng Leong & Sundaram, D. (1980). Practical geography. Oxford University Press.
Čikaški stil citiranja (17. izdanje)Goh Cheng Leong i Dickson Sundaram. Practical Geography. Kuala Lumpur: Oxford University Press, 1980.
MLA način citiranja (9. izdanje)Goh Cheng Leong i Dickson Sundaram. Practical Geography. Oxford University Press, 1980.
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