Kersten, R. D. (1969). Engineering differential systems. McGraw-Hill.
Dyfyniad Arddull ChicagoKersten, Robert D. Engineering Differential Systems. New York: McGraw-Hill, 1969.
Dyfyniad MLAKersten, Robert D. Engineering Differential Systems. McGraw-Hill, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.