APA

Thoman R. S., Conkling E. C., Yeates M. & Castner H. W. (1968). The geography of economic activity. New York [u.a.]: McGraw-Hill.

Chicago

Thoman Richard S, Conkling Edgar C, Yeates Maurice and Castner Henry W. 1968. The geography of economic activity. New York [u.a.]: McGraw-Hill.

Harvard

Thoman R. S., Conkling E. C., Yeates M. and Castner H. W. (1968). The geography of economic activity. New York [u.a.]: McGraw-Hill.

MLA

Thoman Richard S, Conkling Edgar C, Yeates Maurice and Castner Henry W. The geography of economic activity. New York [u.a.]: McGraw-Hill. 1968.