@book{30405,
	author = {Sergiovanni, Thomas J. and Starratt, Robert J.,},
	title = {Emerging patterns of supervision},
	publisher = {McGraw-Hill},
	year = {[c1971]},
	series = {McGraw-Hill series in education},
	address = {New York},
	note = {Published in 1979 under title: Supervision: human perspectives.}
}