Leong, G. C., & Morgan, G. C. (1982). Human and economic geography (2nd ed.). Oxford University.
Čikaški stil citiranja (17. izdanje)Leong, Goh Cheng, i Gillian C. Morgan. Human and Economic Geography. 2nd ed. Oxford: Oxford University, 1982.
MLA način citiranja (9. izdanje)Leong, Goh Cheng, i Gillian C. Morgan. Human and Economic Geography. 2nd ed. Oxford University, 1982.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.