@book{6499,
	author = {Macmillan, C. J. B. and Nelson, Thomas W.,},
	title = {Concepts of teaching},
	publisher = {Rand McNally},
	year = {[1968]},
	address = {Chicago,},
	url = {http://catalog.hathitrust.org/api/volumes/oclc/35992.html}
}