APA

Armstrong E. L., Mermel T. W. & Engineering Foundation (U.S.). (1975). Converting existing hydro-electric dams and reservoirs into pumped storage facilities. New York: American Society of Civil Engineers.

Chicago

Armstrong Ellis L, Mermel T W and Engineering Foundation (U.S.). 1975. Converting existing hydro-electric dams and reservoirs into pumped storage facilities. New York: American Society of Civil Engineers.

Harvard

Armstrong E. L., Mermel T. W. and Engineering Foundation (U.S.). (1975). Converting existing hydro-electric dams and reservoirs into pumped storage facilities. New York: American Society of Civil Engineers.

MLA

Armstrong Ellis L, Mermel T W and Engineering Foundation (U.S.). Converting existing hydro-electric dams and reservoirs into pumped storage facilities. New York: American Society of Civil Engineers. 1975.