H. L. Hollingworth and A. T. Poffenberger. New ed., enl. and rev.
HOLLINGWORTH, HARRY LEVI. Applied psychology
HOLLINGWORTH, HARRY LEVI. Applied psychology, by H. L. Hollingworth and A. T. Poffenberger. New ed., enl. and rev. © on new & revised material; 8Oct23, A760382. R77688, 25Apr51, Harry L. Hollingworth (A) & A. T. Poffenberger (A)
Harry L. Hollingworth|A||A. T. Poffenberger|A