Cita APA (7a ed.)
G Boehm, R., Armstrong, D. G., & Hunkins, F. P. (2002). Geography: The world and its people. Glencoe/McGraw-Hill.
Cita Chicago Style (17a ed.)
G Boehm, Richard, David G. Armstrong, y Francis P. Hunkins. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 2002.
Cita MLA (9a ed.)
G Boehm, Richard, et al. Geography: The World and Its People. Glencoe/McGraw-Hill, 2002.
Precaución: Estas citas no son 100% exactas.