HEITKAMP, J. H. Process plant construction estimating standars: Process equipment. Volume IV. Richardson Engineering Service Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHEITKAMP, John H. Process Plant Construction Estimating Standars: Process Equipment. Volume IV. Richardson Engineering Service Inc.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHEITKAMP, John H. Process Plant Construction Estimating Standars: Process Equipment. Volume IV. Richardson Engineering Service Inc.
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