Style de citation APA (7e éd.)
(1978). <The> Elderly population: 1976 : estimates by county. U. S. Department of health, educationaad welfare.
Style de citation Chicago (17e éd.)
<The> Elderly Population: 1976 : Estimates by County. Washington: U. S. Department of health, educationaad welfare, 1978.
Style de citation MLA (9e éd.)
<The> Elderly Population: 1976 : Estimates by County. U. S. Department of health, educationaad welfare, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.