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5by Delon, Floyd G, Delon, Floyd G., 1929-, Delon, Floyd G., 1929-, Delon, Floyd G., 1929-2019“...Educational Research Service, Inc.,...”
Published 1977
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9by Kowalski, Joan P. Sullivan, Kowalski, Joan P. Sullivan, Kowalski, Joan P. Sullivan“...Educational Research Service, Inc.,...”
Published 1977
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10by Lindman, Erick L (Erick Le Roy), 1909-1989“...Educational Research Service, inc.,...”
Published 1975
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