Não informado. (1968). Imprint. National Student Nurses Association.
Style de citation Chicago (17e éd.)Não informado. Imprint. New York: National Student Nurses Association, 1968.
Style de citation MLA (8e éd.)Não informado. Imprint. National Student Nurses Association, 1968.
Attention : ces citations peuvent ne pas être correctes à 100%.