Institute of Recreation Management. (1981). Recreation managemet handbook (3rd. ed.). E & F N Spon.
Chicago Style aipamenaInstitute of Recreation Management. Recreation Managemet Handbook. 3rd. ed. London: E & F N Spon, 1981.
MLA aipamenaInstitute of Recreation Management. Recreation Managemet Handbook. 3rd. ed. E & F N Spon, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.