FixxJ. F.The complete book of running. New York: Random House, 1977.
3.
GlasserW.Positive addiction. New York: Harper & Row, 1976.
4.
JorgensonD. E.JorgensonC. B.The effect of running/jogging on intra-family relationships. Paper presented at the meeting of the Western Social Science Association, Denver, April, 1978.
5.
LeonardsonG. R.GargiuloR. M.Self-perception and physical fitness. Perceptual and Motor Skills, 1978, 46, 338.