Não informado. Public Health Service Publications. U.S. Department of Health Education and Welfare.
Style de citation Chicago (17e éd.)Não informado. Public Health Service Publications. Washington: U.S. Department of Health Education and Welfare.
Style de citation MLA (8e éd.)Não informado. Public Health Service Publications. U.S. Department of Health Education and Welfare.
Attention : ces citations peuvent ne pas être correctes à 100%.