Gaya APA

Ellsworth, R, C. (1950). THE. USE OF MECHANICAL DEVICES AND UNUSUAL TECHNIQUES IN PHYSICAL EDUCATION AS SUPPLEMENTARY TEACHING AIDS (Published). : © ProQuest LLC.

Gaya MLA

Ellsworth, Robert, Christian. "THE. USE OF MECHANICAL DEVICES AND UNUSUAL TECHNIQUES IN PHYSICAL EDUCATION AS SUPPLEMENTARY TEACHING AIDS". Published : © ProQuest LLC, 1950. Text.