Não informado. (1976). Occupational Health and Safety. Stevens Publishing.
Style de citation Chicago (17e éd.)Não informado. Occupational Health and Safety. Waco, Tex: Stevens Publishing, 1976.
Style de citation MLA (8e éd.)Não informado. Occupational Health and Safety. Stevens Publishing, 1976.
Attention : ces citations peuvent ne pas être correctes à 100%.