Cita APA (7th ed.)

Winston, B. J. (1991). Geography: Our country and our world. Scott, Foresman and Co..

Cita Chicago (17th ed.)

Winston, Barbara J. Geography: Our Country and Our World. Glenview: Scott, Foresman and Co., 1991.

Cita MLA (9th ed.)

Winston, Barbara J. Geography: Our Country and Our World. Scott, Foresman and Co., 1991.

Atenció: Aquestes cites poden no estar 100% correctes.