Population psychology : research and educational issues

Bethesda, Md. : U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Institute of Child Health and Human Development, Center for Population Research ; Washigton : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1976.

The Walnut Creek contraceptive drug study : a prospective study of the side effects of oral contrace

Bethesda, Md. : U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Institute of Child Health and Human Development, Center for Population Research ; Washington : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1974-