@book{30846,
	author = {Nerbovig, Marcella Hannah and Klausmeier, Herbert J.},
	title = {Teaching in the elementary school},
	publisher = {Harper & Row},
	year = {[1969]},
	series = {Exploration series in education},
	address = {New York},
	edition = {3d ed.},
	note = {In earlier editions Klausmeier's name appeared first on the title page.}
}