@book{266157,
	author = {Commons, Michael L. and Beyond Formal Operations Symposium},
	title = {Adult development /},
	publisher = {Praeger,},
	year = {1989-1990.},
	address = {New York :},
	note = {"Presentations made at the Second Beyond Formal Operations Symposium held at Harvard University: The Development of adolescent and adult thought, epistemology, and perception, June 21-23, 1985"--Pref., v. 1.}
}