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A Guide to the economic evaluation of projects
Allen, D. H., (1972)
Spon's architects' and builders' price book, : 102nd Edition, Ed. by Davis, Belfield and Everest, published by E. & F.N. Spon Ltd. London 1976, xviii + 513 pages, price [UK pound] 5.90
Allen, D. H., (1977)
Preliminary chemical engineering plant design, : by W.D. Baasel, published by Elsevier, New York, 1976, xiii + 490 pages, price U.S. $ 32.95