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A book: THE FUNDAMENTALS OF STACK GAS DISPERSION written and published by Milton R. Beychok, is the most comprehensive book ever written on air dispersion modeling and calculations.

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Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.

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Zunia is a portal for knowledge exchange among development professionals worldwide. News, events, best practices and publications on a wide range of international development topics.