एपीए उद्धरण

Happ, H. H. (1980). Piecewise methods and applications to power systems. New York: John Wiley & Sons.

शिकागो स्टाइल उद्धरण

Happ, H. H. Piecewise Methods and Applications to Power Systems. New York: John Wiley & Sons, 1980.

एमएलए उद्धरण

Happ, H. H. Piecewise Methods and Applications to Power Systems. New York: John Wiley & Sons, 1980.