By National Extension College, The
By Porkess, Roger
By Ariely, Dan
By Hogg, Robert V., Craig, Allen T.
By Walpole, Ronald E.
By Mendenhall
By Walpole, Ronald E., Myers, Raymond H.
By Witte, Robert S.
By Hays, William L.
By Miller, Robert W., Wichern, Dean W.
By Marston, V.P.
By Neave, Henry R.
By Ormell, C.P.
By Wilson, Robin J.
By Levitt, Steven D
By Krantz, Les
By Guenther, William C.
By Mood, Alexander, Graybill, Franklin, Boes, Duane
By Spiegel, Murray
By Stephens, Larry
By Beaumont, G. P.
By Meddis, Ray
By Spiegel, Murray R., Meddis, Ray
By Mood, Alexander
By Siegel, Sidney
By BOWERMAN
By Marchal, William G., Lind, Douglas A., Mason, Robert D.