por Meredith, Mark [autor] | Cope, Robert G, 1936- [autor] | Lenning, Oscar T [autor].
por Lenning, Oscar T [autor] | Sauer, Ken [autor] | Beal, Philip E [autor].
por Lenning, Oscar T [autor] | Sauer, Ken [autor] | Beal, Philip E [autor] | American Association for Higher Education.