APA引文

Ramsay, F. J. (1999). Africa (8th ed.). London: McGraw-Hill.

Trích dẫn kiểu Chicago

Ramsay, F. Jeffress. Africa. 8th ed. London: McGraw-Hill, 1999.

MLA引文

Ramsay, F. Jeffress. Africa. 8th ed. London: McGraw-Hill, 1999.