@book{1912,
	author = {Allen, Edward David, and Valette, Rebecca M.,},
	title = {Classroom techniques :},
	publisher = {Harcourt Brace Jovanovich,},
	year = {c1977.},
	address = {New York :},
	edition = {[Rev. and expanded ed.].},
	note = {Published in 1972 under title: Modern language classroom techniques.}
}