Não informado. (1949). Journal of Industrial Engineering. American Institute of Industrial Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Journal of Industrial Engineering. New York: American Institute of Industrial Engineers, 1949.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Journal of Industrial Engineering. American Institute of Industrial Engineers, 1949.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.