Humphrey, J. H. (1976). Improving learning ability through compensatory physical education. C. C. Thomas.
Lua i Stíl Chicago (17ú heag.)Humphrey, James Harry. Improving Learning Ability Through Compensatory Physical Education. Springfield, Ill: C. C. Thomas, 1976.
Lua MLA (9ú heag.)Humphrey, James Harry. Improving Learning Ability Through Compensatory Physical Education. C. C. Thomas, 1976.
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