Não informado. (1952). Chemical and Process Engineering. Leonard Hill Technical Group.
Chicago-Zitierstil (17. Ausg.)Não informado. Chemical and Process Engineering. London: Leonard Hill Technical Group, 1952.
MLA-Zitierstil (8. Ausg.)Não informado. Chemical and Process Engineering. Leonard Hill Technical Group, 1952.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.