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by Robert H. Hayes (Harvard University ); Gary P. Pisano (Harvard University ); David M. Upton (Harvard University ); et al.
by Keller, Gary D.
by Epstein, Brad M.
by T. J. Wray (Salve Regina University); Ann Back Price (Providence, Rhode Island)
by Duhl, David
by Barry Burd (Drew University, Madison, NJ)
by Lumsden, Roddy
by McKee, Gwen
by Derald Wing Sue (Columbia University and Teacher's College, Columbia University)
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