Cita APA (7a ed.)

Chellis, R. D. (1961). Pile foundations (2nd. ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Chellis, Robert D. Pile Foundations. 2nd. ed. New York: McGraw-Hill, 1961.

Cita MLA (9a ed.)

Chellis, Robert D. Pile Foundations. 2nd. ed. McGraw-Hill, 1961.