@book{17747,
	author = {Cogan, E. J. and Norman, R. Z. and Norman, R. Z. ; jt. auth.},
	title = {Handbook of calculus, difference and differential equations},
	publisher = {Prentice-Hall},
	year = {1963},
	series = {Prentice-Hall mathematics series},
	address = {New Jersey}
}