APA
Klaren D., Boer E. D. & Boer E. D.Cost savings of 'zero-fouling' crude oil preheaters. : .
Chicago
Klaren D.G, Boer E.F De and Boer E.F De.Cost savings of 'zero-fouling' crude oil preheaters. : .
Harvard
Klaren D., Boer E. D. and Boer E. D.Cost savings of 'zero-fouling' crude oil preheaters. : .
MLA
Klaren D.G, Boer E.F De and Boer E.F De.: . .