Cita APA

National Center for Health Statistics (U.S.), & National Health Survey (U.S.). Vital and health statistics. Rockville, Md.: U. S. Dept. of Health, Education and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics; Washington, for sale by the Supt. of Docs., U. S. Govt. Print. Off.

Citación estilo Chicago

National Center for Health Statistics (U.S.), y National Health Survey (U.S.). Vital and Health Statistics. Rockville, Md.: U. S. Dept. of Health, Education and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics; Washington, for sale by the Supt. of Docs., U. S. Govt. Print. Off.

Cita MLA

National Center for Health Statistics (U.S.), y National Health Survey (U.S.). Vital and Health Statistics. Rockville, Md.: U. S. Dept. of Health, Education and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics; Washington, for sale by the Supt. of Docs., U. S. Govt. Print. Off.