The relationship between sources of motivation and level of practice in young portuguese swimmers
- Salselas, V.
- Gonzalez-Boto, R.
- Tuero, C.
- Marquez, S.
ISSN: 0022-4707
Datum der Publikation: 2007
Ausgabe: 47
Nummer: 2
Seiten: 228-233
Art: Rezension