APA (7e ed.) Bronvermelding
G Boehm, R., Armstrong, D. G., & Hunkins, F. P. (2002). Geography: The world and its people. Glencoe/McGraw-Hill.
Chicago (17e ed.) Bronvermelding
G Boehm, Richard, David G. Armstrong, en Francis P. Hunkins. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 2002.
MLA (9e ed.) Bronvermelding
G Boehm, Richard, et al. Geography: The World and Its People. Glencoe/McGraw-Hill, 2002.
Let op: Deze citaties zijn niet altijd 100% accuraat.