Não informado. (1948). International Chemical Engineering and Process Industries. Leonard Hill Technical Group.
Chicago-Zitierstil (17. Ausg.)Não informado. International Chemical Engineering and Process Industries. London: Leonard Hill Technical Group, 1948.
MLA-Zitierstil (8. Ausg.)Não informado. International Chemical Engineering and Process Industries. Leonard Hill Technical Group, 1948.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.