(1999, 11. November). The role of dietary supplements for physically active people. Zugriff unter https://ods.od.nih.gov/News/Dietary_Supplements_for_Physically_Active_People.aspx
APA-Zitierstil (7. Ausg.)(1996). The role of dietary supplements for physically active people.
Chicago-Zitierstil (17. Ausg.)The Role of Dietary Supplements for Physically Active People. 1996.
MLA-Zitierstil (9. Ausg.)The Role of Dietary Supplements for Physically Active People. 1996.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.