एपीए उद्धरण

Woodward, R. J., & Gardner, S. W. G. (1972). Drilled Pier Foundations. McGraw-Hill.

शिकागो स्टाइल उद्धरण

Woodward, Richard J., और S. William Greer Gardner. Drilled Pier Foundations. New York: McGraw-Hill, 1972.

एमएलए उद्धरण

Woodward, Richard J., और S. William Greer Gardner. Drilled Pier Foundations. McGraw-Hill, 1972.