APA
Leong G. C., x, . (1982). Human and economic geography. Oxford ; New York: Oxford University Press.
Chicago
Leong Goh Cheng, x, . 1982. Human and economic geography. Oxford ; New York: Oxford University Press.
Harvard
Leong G. C., x, . (1982). Human and economic geography. Oxford ; New York: Oxford University Press.
MLA
Leong Goh Cheng, x, . Human and economic geography. Oxford ; New York: Oxford University Press. 1982.