School and Community Safety Society of America & Dougherty, N. J. (1998). Outdoor recreation safety. Human Kinetics.
Chicago Style aipamenaSchool and Community Safety Society of America and Neil J. Dougherty. Outdoor Recreation Safety. Champaign, IL: Human Kinetics, 1998.
MLA aipamenaSchool and Community Safety Society of America and Neil J. Dougherty. Outdoor Recreation Safety. Human Kinetics, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.