एपीए उद्धरण

Kreh, R. (1978). Advanced masonary skills. Van Nostrand Reinhold Company.

शिकागो स्टाइल उद्धरण

Kreh, Richard.T. Advanced Masonary Skills. New York: Van Nostrand Reinhold Company, 1978.

एमएलए उद्धरण

Kreh, Richard.T. Advanced Masonary Skills. Van Nostrand Reinhold Company, 1978.