Cita APA (7a ed.)

Jackson, E. L., & Searle, M. S. (1985). Recreation non-participation and barriers to participation: Concepts and models. [s.n.].

Cita Chicago Style (17a ed.)

Jackson, Edgar Lionel, y Mark S. Searle. Recreation Non-participation and Barriers to Participation: Concepts and Models. [S.l.]: [s.n.], 1985.

Cita MLA (9a ed.)

Jackson, Edgar Lionel, y Mark S. Searle. Recreation Non-participation and Barriers to Participation: Concepts and Models. [s.n.], 1985.