Não informado. (1938). Occupational Psychology. National Institute of Industrial Psychology.
Chicagoスタイル(17版)引用形式Não informado. Occupational Psychology. London: National Institute of Industrial Psychology, 1938.
MLA(8版)引用形式Não informado. Occupational Psychology. National Institute of Industrial Psychology, 1938.
警告: この引用は必ずしも正確ではありません.