The relationship between physical activity and quality of life of people in age 25-30, 35-40 and 45-50

Journal of Education, Health and Sport, Tom 6, Numer 13 (2016) s. 115-126
Małgorzata Krajewska, Katarzyna Galijewska, Stanisław Krajewski, Magda Kucharczuk-Kopycińska