Cita APA

Boehm, R. G. (1998). Geography: The World and its people. New York: Glencoe/McGraw-Hill.

Citación estilo Chicago

Boehm, Ricchard G. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 1998.

Cita MLA

Boehm, Ricchard G. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 1998.