APA
Pender H., Del Mar W. A., . (1949). Electrical engineer's handbook. Electric Power. New York: J.Wiley.
Chicago
Pender Harold, Del Mar W A, . 1949. Electrical engineer's handbook. Electric Power. New York: J.Wiley.
Harvard
Pender H., Del Mar W. A., . (1949). Electrical engineer's handbook. Electric Power. New York: J.Wiley.
MLA
Pender Harold, Del Mar W A, . Electrical engineer's handbook. Electric Power. New York: J.Wiley. 1949.