Keller, E & Fröhner, G. (1989). Growth and development of boys with intensive training in gymnastics during puberty. Hormones and sport, New York: Raven Press, 1989. - S. 11 - 20: 3 Abb., 1 Tab., 14 Lit..
APA-Zitierstil (7. Ausg.)Keller, E., & Fröhner, G. (1989). Growth and development of boys with intensive training in gymnastics during puberty Hormones and sport.
Chicago-Zitierstil (17. Ausg.)Keller, E., und G. Fröhner. "Growth and Development of Boys with Intensive Training in Gymnastics During Puberty." Hormones and Sport 1989.
MLA-Zitierstil (9. Ausg.)Keller, E., und G. Fröhner. "Growth and Development of Boys with Intensive Training in Gymnastics During Puberty." Hormones and Sport, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.