APA (7e ed.) Bronvermelding

LUDWIG, E. E. (1997). Applied process design for chemical and petrochemical plants (Ed.32.). Gulf Professional Publishing.

Chicago (17e ed.) Bronvermelding

LUDWIG, Ernest E. Applied Process Design for Chemical and Petrochemical Plants. Ed.32. Texas: Gulf Professional Publishing, 1997.

MLA (9e ed.) Bronvermelding

LUDWIG, Ernest E. Applied Process Design for Chemical and Petrochemical Plants. Ed.32. Gulf Professional Publishing, 1997.