APA

Eckard E., National Center for Health Statistics (U.S.), . (1981). Teenagers who use organized family planning services: United States, 1978. Hyattsville, Md: U.S. Department of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics.

Chicago

Eckard Eugenia, National Center for Health Statistics (U.S.), . 1981. Teenagers who use organized family planning services: United States, 1978. Hyattsville, Md: U.S. Department of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics.

Harvard

Eckard E., National Center for Health Statistics (U.S.), . (1981). Teenagers who use organized family planning services: United States, 1978. Hyattsville, Md: U.S. Department of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics.

MLA

Eckard Eugenia, National Center for Health Statistics (U.S.), . Teenagers who use organized family planning services: United States, 1978. Hyattsville, Md: U.S. Department of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics. 1981.