Cita APA

Chellis, R. D. (1961). Pile foundations (Ed.2.). Mc Graw - Hill.

Chicago Edition Citation

Chellis, Robert D. Pile Foundations. Ed.2. sl: Mc Graw - Hill, 1961.

Cita MLA

Chellis, Robert D. Pile Foundations. Ed.2. Mc Graw - Hill, 1961.