APA-viite (7. p.)

Gråstén, A. (2014). Students' physical activity, physical education enjoyment, and motivational determinants through a three-year school-initiated program.

Chicago-viite (17. p.)

Gråstén, Arto. Students' Physical Activity, Physical Education Enjoyment, and Motivational Determinants Through a Three-year School-initiated Program. Jyväskylä, 2014.

MLA-viite (9. p.)

Gråstén, Arto. Students' Physical Activity, Physical Education Enjoyment, and Motivational Determinants Through a Three-year School-initiated Program. 2014.