APA
(1961). Health Statistics: Distributions and use of Hearing Aids, Wheel Chairs, Braces, and Artificial Limbs. : U.S. Department of Health Education and Welfare.
Chicago
1961. Health Statistics: Distributions and use of Hearing Aids, Wheel Chairs, Braces, and Artificial Limbs. : U.S. Department of Health Education and Welfare.
Harvard
(1961). Health Statistics: Distributions and use of Hearing Aids, Wheel Chairs, Braces, and Artificial Limbs. : U.S. Department of Health Education and Welfare.
MLA
Health Statistics: Distributions and use of Hearing Aids, Wheel Chairs, Braces, and Artificial Limbs. : U.S. Department of Health Education and Welfare. 1961.