Style de citation APA (7e éd.)

Gray, J., & Dahmen, D. (1977). Market potential for Wisconsin's attraction and campgrounds (2nd ed.). Recreation Resources Ceter.

Style de citation Chicago (17e éd.)

Gray, Jack, et Dave Dahmen. Market Potential for Wisconsin's Attraction and Campgrounds. 2nd ed. Madison, Wisc: Recreation Resources Ceter, 1977.

Style de citation MLA (9e éd.)

Gray, Jack, et Dave Dahmen. Market Potential for Wisconsin's Attraction and Campgrounds. 2nd ed. Recreation Resources Ceter, 1977.