Cita APA (7a ed.)

Searle, M. S., & Jackson, E. L. (1985). Recreation non-participation and barriers to participation: Considerations for the management of recreation delivery systems. [s.n.].

Cita Chicago Style (17a ed.)

Searle, Mark S., y Edgar Lionel Jackson. Recreation Non-participation and Barriers to Participation: Considerations for the Management of Recreation Delivery Systems. [S.l.]: [s.n.], 1985.

Cita MLA (9a ed.)

Searle, Mark S., y Edgar Lionel Jackson. Recreation Non-participation and Barriers to Participation: Considerations for the Management of Recreation Delivery Systems. [s.n.], 1985.