Não informado. (1938). Occupational Psychology. National Institute of Industrial Psychology.
Style de citation Chicago (17e éd.)Não informado. Occupational Psychology. London: National Institute of Industrial Psychology, 1938.
Style de citation MLA (8e éd.)Não informado. Occupational Psychology. National Institute of Industrial Psychology, 1938.
Attention : ces citations peuvent ne pas être correctes à 100%.