एपीए उद्धरण

Roylance, D., & David Roylance. Mechanics of materials. New York: Wiley.

शिकागो स्टाइल उद्धरण

Roylance, David, और David Roylance. Mechanics of Materials. New York: Wiley.

एमएलए उद्धरण

Roylance, David, और David Roylance. Mechanics of Materials. New York: Wiley.