Dyfyniad APA

Chisholm, M. (1973). Geography and economics (2nd ed.). Bell.

Dyfyniad Arddull Chicago

Chisholm, Michael. Geography and Economics. 2nd ed. London: Bell, 1973.

Dyfyniad MLA

Chisholm, Michael. Geography and Economics. 2nd ed. Bell, 1973.

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