APA (7th ed.) Citation

Walden, D. C. (1982). Eyeglasses and contact lenses: Purchases, expenditures, and sources of payment. U.S. Department of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Services Research.

Chicago Style (17th ed.) Citation

Walden, Daniel C. Eyeglasses and Contact Lenses: Purchases, Expenditures, and Sources of Payment. Hyattsville, Md.: U.S. Department of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Services Research, 1982.

MLA (9th ed.) Citation

Walden, Daniel C. Eyeglasses and Contact Lenses: Purchases, Expenditures, and Sources of Payment. U.S. Department of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Services Research, 1982.