Cita APA (7a ed.)

Prerost, F. J. (1993). A strategy to enhance humor production among elderly persons: Assisting in the management of stress. [s.n.].

Cita Chicago Style (17a ed.)

Prerost, Frank J. A Strategy to Enhance Humor Production Among Elderly Persons: Assisting in the Management of Stress. [S.l.]: [s.n.], 1993.

Cita MLA (9a ed.)

Prerost, Frank J. A Strategy to Enhance Humor Production Among Elderly Persons: Assisting in the Management of Stress. [s.n.], 1993.