(1969). A program for outdoor recreation research: Report on a study conference conducted, June 2-8, 1968. The Acad.
Chicago-Zitierstil (17. Ausg.)A Program for Outdoor Recreation Research: Report on a Study Conference Conducted, June 2-8, 1968. Washington, DC: The Acad, 1969.
MLA-Zitierstil (9. Ausg.)A Program for Outdoor Recreation Research: Report on a Study Conference Conducted, June 2-8, 1968. The Acad, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.