Não informado. (1980). International Journal of Operations & Production Management. MCB University Press.
Chicago-referens (17:e uppl.)Não informado. International Journal of Operations & Production Management. Bradford, Inglaterra: MCB University Press, 1980.
MLA-referens (8:e uppl.)Não informado. International Journal of Operations & Production Management. MCB University Press, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.