United States. Office of Education. (1938). School use of visual aids: An interpretative study of the data collected in the national survey of visual instruction in elementary and secondary schools. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Office of Education. School Use of Visual Aids: An Interpretative Study of the Data Collected in the National Survey of Visual Instruction in Elementary and Secondary Schools. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Office of Education. School Use of Visual Aids: An Interpretative Study of the Data Collected in the National Survey of Visual Instruction in Elementary and Secondary Schools. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.