APA (7th ed.) Citation

Tønnessen, E., Svendsen, I. S., Olsen, I. C., Guttormsen, A., & Haugen, T. (2015). Performance development in adolescent track and field athletes according to age, sex and sport discipline. Public Library of Science (PLoS).

Chicago Style (17th ed.) Citation

Tønnessen, Espen, Ida Siobhan Svendsen, Inge Christoffer Olsen, Atle Guttormsen, and Thomas Haugen. Performance Development in Adolescent Track and Field Athletes According to Age, Sex and Sport Discipline. Public Library of Science (PLoS), 2015.

MLA (8th ed.) Citation

Tønnessen, Espen, et al. Performance Development in Adolescent Track and Field Athletes According to Age, Sex and Sport Discipline. Public Library of Science (PLoS), 2015.

Warning: These citations may not always be 100% accurate.