Hildebrand, F. B. (1969). Methods for <applied mathematics> (2nd ed.). Prentice-Hall of India.
Dyfyniad Arddull ChicagoHildebrand, Fransis B. Methods for <applied Mathematics>. 2nd ed. New Delhi: Prentice-Hall of India, 1969.
Dyfyniad MLAHildebrand, Fransis B. Methods for <applied Mathematics>. 2nd ed. Prentice-Hall of India, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.