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103by Hartmann, George W. (George Wilfried), 1904-1955Subjects: “...Educational psychology....”
Published 1941
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109
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113by Judd, Charles H., (Charles Hubbard), 1873-1946Subjects: “...Educational psychology....”
Published 1939
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117by Pillsbury, W. B. (Walter Bowers), 1872-1960Subjects: “...Educational psychology....”
Published 1925
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118
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119by Skinner, Charles E. (Charles Edward), 1891-1983Subjects: “...Educational psychology....”
Published 1951
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120by Skinner, Charles E. (Charles Edward), 1891-1983Subjects: “...Educational psychology....”
Published 1950
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