Perry's Chemical Engineers' Handbook is a key handbook for chemical engineers with information on all aspects of chemical engineering.
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Find out more about chromatographic methods, instrumentation, and applications in Encyclopedia of Chromatography.
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The Civil Engineer's Reference Book offers a concise overview of and reference source for civil engineering.

The Energy Efficiency Manual is a guide on saving energy and money aimed at both users of energy (pretty much all of us) as well as those who design the systems. The focus is on homes as well as large businesses.