Cita APA

Freysinger, V. J., & Kelly, J. R. (2004). 21st century leisure: Current issues (2. edition.). State College, PA: Venture.

Citación estilo Chicago

Freysinger, Valeria J., y John R. Kelly. 21st Century Leisure: Current Issues. 2. edition. State College, PA: Venture, 2004.

Cita MLA

Freysinger, Valeria J., y John R. Kelly. 21st Century Leisure: Current Issues. 2. edition. State College, PA: Venture, 2004.