Não informado. (1969). Industrial Engineering. Institute of Industrial Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Industrial Engineering. Norcross, Ga: Institute of Industrial Engineers, 1969.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Industrial Engineering. Institute of Industrial Engineers, 1969.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.