Willis, H. B. (1977). The evaluation of Dam safety: Engineering foundation conference proceedings : asilomar conference grounds Pacific Grove, California November 28-December 3, 1976. New York: American Society of Civil Engineers.
Παραπομπή Chicago StyleWillis, Homer B. The Evaluation of Dam Safety: Engineering Foundation Conference Proceedings : Asilomar Conference Grounds Pacific Grove, California November 28-December 3, 1976. New York: American Society of Civil Engineers, 1977.
Παραπομπή MLAWillis, Homer B. The Evaluation of Dam Safety: Engineering Foundation Conference Proceedings : Asilomar Conference Grounds Pacific Grove, California November 28-December 3, 1976. New York: American Society of Civil Engineers, 1977.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.