TY - BOOK AU - Skinner,Charles E. AU - Harriman,Philip Lawrence TI - Essentials of educational psychology T2 - Prentice-Hall psychology series PY - 1958/// CY - Englewood Cliffs, N.J. PB - Prentice-Hall KW - Educational psychology N1 - 'Formerly published as Elementary educational psychology.'; Includes bibliographical references ER -