Research methods in physical activity - Thomas, Jerry R. 4 0 16; Nelson, Jack K.;Thomas, Jerry R.; 5 (Champaign, Illinois : Human Kinetics Publishers, 1990)
Rev. ed. of: Introduction to research in health, physical education, recreation, and dance. c1985.
Includes bibliographical references (p. 529-542) and indexes.
Keywords: 2 -- 0; 6; 20; 20; 2