Cita APA

Chelis, R. D. (1961). Pile foundations (2¦ ed.). New York: McGraw-Hill Book Company.

Citación estilo Chicago

Chelis, Robert D. Pile Foundations. 2¦ ed. New York: McGraw-Hill Book Company, 1961.

Cita MLA

Chelis, Robert D. Pile Foundations. 2¦ ed. New York: McGraw-Hill Book Company, 1961.