National Association for Sport and Physical Education, Martens, R., & Seefeldt, V. (1979). Guidelines for children's sports. The Association.
Chicago Style (17th ed.) CitationNational Association for Sport and Physical Education, Rainer Martens, and Vern Seefeldt. Guidelines for Children's Sports. Washington: The Association, 1979.
MLA (9th ed.) CitationNational Association for Sport and Physical Education, et al. Guidelines for Children's Sports. The Association, 1979.
Warning: These citations may not always be 100% accurate.