@book{3644,
	author = {Munzer, Martha E. and Brandwein, Paul Franz,},
	title = {Teaching science through conservation},
	publisher = {McGraw-Hill,},
	year = {1960.},
	series = {McGraw-Hill series in education. Curriculum and methods in education},
	address = {New York,},
	note = {Includes index.}
}