एपीए उद्धरण

Bethea, R. M. (1978). Air Pollution Conreol Rechnology, An Engineering Analysis Point of Vies. Van Norstrand Reinhold.

शिकागो स्टाइल उद्धरण

Bethea, Robert. M. Air Pollution Conreol Rechnology, An Engineering Analysis Point of Vies. New York: Van Norstrand Reinhold, 1978.

एमएलए उद्धरण

Bethea, Robert. M. Air Pollution Conreol Rechnology, An Engineering Analysis Point of Vies. Van Norstrand Reinhold, 1978.