<div class="description">
<p>Bibliography: p. 331-342
</p>
<br>Subjects: Psychology, Applied</div>
<div class="fn value">
<dl><dd>Hollingworth, Harry L. (Harry Levi), 1880-1956</dd>
<dd>Poffenberger, Albert Theodor, 1885- joint author</dd></dl></div>
Internet Archive identifier