Herrick, E. C. (1979). Unit Process Guide to Organic Chemical Industries. Ann Arbor.
शिकागो स्टाइल उद्धरणHerrick, Elbert C. Unit Process Guide to Organic Chemical Industries. Mich: Ann Arbor, 1979.
एमएलए उद्धरणHerrick, Elbert C. Unit Process Guide to Organic Chemical Industries. Ann Arbor, 1979.
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