Janis, R. R. (2005). Mechanical and electrical systems in buildings. New jersey: Pearson Education, Inc.
शिकागो स्टाइल उद्धरणJanis, Richard R. Mechanical and Electrical Systems in Buildings. New jersey: Pearson Education, Inc, 2005.
एमएलए उद्धरणJanis, Richard R. Mechanical and Electrical Systems in Buildings. New jersey: Pearson Education, Inc, 2005.
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