Dyfyniad APA

Boehm, R. G. (2002). Geography: The World and its people. New York: Glencoe/McGraw-Hill.

Dyfyniad Arddull Chicago

Boehm, Ricchard G. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 2002.

Dyfyniad MLA

Boehm, Ricchard G. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 2002.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.