एपीए उद्धरण

Janis, R. R. (2005). Mechanical and electrical systems in buildings. New jersey: Pearson Education, Inc.

शिकागो स्टाइल उद्धरण

Janis, Richard R. Mechanical and Electrical Systems in Buildings. New jersey: Pearson Education, Inc, 2005.

एमएलए उद्धरण

Janis, Richard R. Mechanical and Electrical Systems in Buildings. New jersey: Pearson Education, Inc, 2005.