Allen, A. F. (1920). An introduction to chemical engineering: An elementary textbook for the use of students and users of chemical machinery. Sir Isaac Pitman and Sons Ltd.
Citazione stile Chigago Style (17a edizione)Allen, Alfred Frederick. An Introduction to Chemical Engineering: An Elementary Textbook for the Use of Students and Users of Chemical Machinery. Londres: Sir Isaac Pitman and Sons Ltd, 1920.
Citatione MLA (9a ed.)Allen, Alfred Frederick. An Introduction to Chemical Engineering: An Elementary Textbook for the Use of Students and Users of Chemical Machinery. Sir Isaac Pitman and Sons Ltd, 1920.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.