@book{21735,
	author = {Klymchuk, Sergiy. and Mathematical Association of America.},
	title = {Counterexamples in calculus /},
	publisher = {Mathematical Association of America,},
	year = {c2010.},
	series = {Classroom resource materials},
	address = {Washington, D.C. :},
	note = {Originally published: New Zealand : Maths Press, 2004.}
}