@book{94618,
	author = {Williamson, Richard E. and Crowell, Richard H.},
	title = {Calculus of vector functions},
	publisher = {Prentice-Hall},
	year = {[1972]},
	address = {Englewood Cliffs, N.J.},
	edition = {3d ed.},
	note = {A revision of the 1st ed. of Calculus of vector functions, by R. H. Crowell and R. E. Williamson.}
}