Cita APA (7a ed.)

Mercer, D. (1982). The concept of recreational need. [s.n.].

Cita Chicago Style (17a ed.)

Mercer, David. The Concept of Recreational Need. [S.l.]: [s.n.], 1982.

Cita MLA (9a ed.)

Mercer, David. The Concept of Recreational Need. [s.n.], 1982.