Cita APA (7a ed.)

Leitner, M. J., & Leitner, S. F. (1989). Leisure enhancement: Instructor's manual. Haworth.

Cita Chicago Style (17a ed.)

Leitner, Michael J., y Sara F. Leitner. Leisure Enhancement: Instructor's Manual. New York [etc.]: Haworth, 1989.

Cita MLA (9a ed.)

Leitner, Michael J., y Sara F. Leitner. Leisure Enhancement: Instructor's Manual. Haworth, 1989.