Happ, H. H. (1980). Piecewise methods and applications to power systems. New York: John Wiley & Sons.
Trích dẫn kiểu ChicagoHapp, H. H. Piecewise Methods and Applications to Power Systems. New York: John Wiley & Sons, 1980.
ציטוט MLAHapp, H. H. Piecewise Methods and Applications to Power Systems. New York: John Wiley & Sons, 1980.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.