@book{14795,
	author = {Cryer, Debby. and Harms, Thelma.},
	title = {Active learning for twos},
	publisher = {Addison-Wesley Pub. Co.},
	year = {c1988.},
	series = {Addison-Wesley active learning series},
	address = {Menlo Park, Calif.},
	note = {Includes indexes.}
}