Cita APA

Kraus, R. G. 1., & Allen, L. R. 1. (1987). Research and evaluation in recreation, parks, and leisure studies. Columbus, Ohio: Publishing Horizons.

Citación estilo Chicago

Kraus, Richard Gordon 1923-2002, y Lawrence Robert 1948- Allen. Research and Evaluation in Recreation, Parks, and Leisure Studies. Columbus, Ohio: Publishing Horizons, 1987.

Cita MLA

Kraus, Richard Gordon 1923-2002, y Lawrence Robert 1948- Allen. Research and Evaluation in Recreation, Parks, and Leisure Studies. Columbus, Ohio: Publishing Horizons, 1987.