एपीए उद्धरण

Langhoff, P. (1927). Models, measurement and marketing. Prentice Hall.

शिकागो स्टाइल उद्धरण

Langhoff, Peter. Models, Measurement and Marketing. New Jersey: Prentice Hall, 1927.

एमएलए उद्धरण

Langhoff, Peter. Models, Measurement and Marketing. Prentice Hall, 1927.