University of Zambia Library Search for 'au:"Ennis, Robert Hugh, 1927-"'

Logic in teaching

By Ennis, Robert Hugh, 1927-. Englewood Cliffs, N.J., Prentice-Hall 1969 0135400961

Chicago : Rand McNally, 1965 , First published in 1961.

By Ennis, Robert Hugh, 1927-. Englewood Cliffs, N.J., Prentice-Hall 1969 0136398561

By Ennis, Robert Hugh, 1927-. Englewood Cliffs, N.J., Prentice-Hall 1969 0135400961

By Smith, B. Othanel (Bunnie Othanel), 1903-. Chicago, Rand McNally 1961