![](/img/cover-not-exists.png)
DIFFERENCES IN THE MOTIVATIONAL CHARACTERISTICS OF "PROFESSIONAL", "SERIOUS AMATEUR" AND"RECREATIONAL" SPORTS PERFORMERS
KERR, JOHN H.Volume:
64
Language:
english
Journal:
Perceptual and Motor Skills
DOI:
10.2466/pms.1987.64.2.379
Date:
April, 1987
File:
PDF, 136 KB
english, 1987