APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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