@book{44909,
	author = {Chastain, Kenneth.},
	title = {The development of modern-language skills},
	publisher = {Center for Curriculum Development},
	year = {[1971]},
	series = {Language and the teacher},
	address = {Philadelphia},
	edition = {[1st ed.]},
	note = {Second ed. published in 1976 under title: Developing second-language skills.}
}