Gaya APA

, ., Gladys, I, S, M. (1959). Research methods in health physical education recreation . Washington D.C.: Washington D.C.: American Association for Health, Physical Education, ì and Recreation; 1959.

Gaya MLA

, ., Gladys, I., Scott,, M.. "Research methods in health physical education recreation". Washington D.C.: Washington D.C.: American Association for Health, Physical Education, ì and Recreation; 1959, 1959. Text.