Não informado. (1919). Hospital social service. Hospital Social Service Association of New York City.
Style de citation Chicago (17e éd.)Não informado. Hospital Social Service. New York: Hospital Social Service Association of New York City, 1919.
Style de citation MLA (8e éd.)Não informado. Hospital Social Service. Hospital Social Service Association of New York City, 1919.
Attention : ces citations peuvent ne pas être correctes à 100%.