Hays, S. (1973). The chemical and allied industries. London: Heinemann Educational Books.
Stile di citazione ChicagoHays, Samuel. The Chemical and Allied Industries. London: Heinemann Educational Books, 1973.
Citazione MLAHays, Samuel. The Chemical and Allied Industries. London: Heinemann Educational Books, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.