APA (7e ed.) Bronvermelding

HEITKAMP, J. H. Process plant construction estimating standars: Process equipment. Volume IV. Richardson Engineering Service Inc.

Chicago (17e ed.) Bronvermelding

HEITKAMP, John H. Process Plant Construction Estimating Standars: Process Equipment. Volume IV. Richardson Engineering Service Inc.

MLA (8e ed.) Bronvermelding

HEITKAMP, John H. Process Plant Construction Estimating Standars: Process Equipment. Volume IV. Richardson Engineering Service Inc.

Let op: Deze citaties zijn niet altijd 100% accuraat.