Cita APA (7a ed.)

Riddick, C. C., & Russell, R. V. (1999). Evaluative research in recreation, park, and sport settings: Searching for useful information. Sagamore.

Cita Chicago Style (17a ed.)

Riddick, Carol Cutler, y Ruth V. Russell. Evaluative Research in Recreation, Park, and Sport Settings: Searching for Useful Information. Champaign, Illinois: Sagamore, 1999.

Cita MLA (9a ed.)

Riddick, Carol Cutler, y Ruth V. Russell. Evaluative Research in Recreation, Park, and Sport Settings: Searching for Useful Information. Sagamore, 1999.