@book{47040,
	author = {Thut, I. N., and Gerberich, Joseph Raymond, Jt. auth.},
	title = {Foundations of method for secondary schools /},
	publisher = {McGraw-Hill,},
	year = {1949.},
	series = {McGraw-Hill series in education},
	address = {New York :},
	edition = {1st ed.},
	note = {"Visual aids": p. 477-478.}
}