Gaya APA

Jackson, R, H., Hudman, L, E. (1982). World regional geography : issues for today (2nd ed.). New York: John Wiley & Sons, Inc..

Gaya MLA

Jackson, Richard, H.., Hudman, Lloyd, E.. "World regional geography : issues for today". 2nd ed. New York: John Wiley & Sons, Inc., 1982. Text.