APA
(1970). Development and Evaluation of an Expanded Hearing Loss Scale Questionnaire. : U.S. Department of Health Education and Welfare.
Chicago
1970. Development and Evaluation of an Expanded Hearing Loss Scale Questionnaire. : U.S. Department of Health Education and Welfare.
Harvard
(1970). Development and Evaluation of an Expanded Hearing Loss Scale Questionnaire. : U.S. Department of Health Education and Welfare.
MLA
Development and Evaluation of an Expanded Hearing Loss Scale Questionnaire. : U.S. Department of Health Education and Welfare. 1970.
