Maquirriain, J. (2009). Age trends in professional tennis players career: Are champions really precocious? Medicine and Science in Tennis, 14 (3), 41. Zugriff am 06.05.2010 unter http://www.stms.nl/index.php?option=com_content&task=view&id=1243&Itemid=263
APA-Zitierstil (7. Ausg.)Maquirriain, J. (2009). Age trends in professional tennis players career: Are champions really precocious? Medicine and Science in Tennis, 14(3), 41.
Chicago-Zitierstil (17. Ausg.)Maquirriain, J. "Age Trends in Professional Tennis Players Career: Are Champions Really Precocious?" Medicine and Science in Tennis 14, no. 3 (2009): 41.
MLA-Zitierstil (9. Ausg.)Maquirriain, J. "Age Trends in Professional Tennis Players Career: Are Champions Really Precocious?" Medicine and Science in Tennis, vol. 14, no. 3, 2009, p. 41.