Briggs, T. R. (1983). An investigation of the efficiency and effectiveness of three nonvocal communication systems with severely handicapped students. Univ. Microfilms Internat.
Chicago Style (17th ed.) CitationBriggs, Thomas R. An Investigation of the Efficiency and Effectiveness of Three Nonvocal Communication Systems with Severely Handicapped Students. Ann Arbor, Mich: Univ. Microfilms Internat, 1983.
MLA (9th ed.) CitationBriggs, Thomas R. An Investigation of the Efficiency and Effectiveness of Three Nonvocal Communication Systems with Severely Handicapped Students. Univ. Microfilms Internat, 1983.
Warning: These citations may not always be 100% accurate.