@book{16224,
	author = {Cowell, Charles Clarence, and Schwehn, Hilda Marie,},
	title = {Modern principles and methods in secondary school physical education},
	publisher = {Allyn and Bacon,},
	year = {1964.},
	address = {Boston,},
	edition = {2d ed.},
	note = {First published in 1958 under title: Modern principles and methods in high school physical education; third ed. published in 1973 under title: Modern Methods in secondary school physical education.}
}