@book{150146,
	author = {De Souto, Martha Sarbey. and De Souto, Martha Sarbey.},
	title = {Group travel},
	publisher = {Delmar Publishers},
	year = {c1993.},
	address = {Albany, N.Y.},
	edition = {2nd ed.},
	note = {Rev. ed. of: Group travel operations manual. 1985.}
}