Greenspan, D. (1961). Introduction to partial differential equations. McGraw-Hill.
Dyfyniad Arddull ChicagoGreenspan, Donald. Introduction to Partial Differential Equations. Bombay: McGraw-Hill, 1961.
Dyfyniad MLAGreenspan, Donald. Introduction to Partial Differential Equations. McGraw-Hill, 1961.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.