Hubler Clark. <br/><br/>
Working with children in science / 
Clark Hubler. 
 - Boston :  Houghton Mifflin,  [c1957] 
 - viii, 425 p. 
<br/><br/><label>Nat. Bib. No.: </label>57013755 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>1020802  ChTaNC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary)<br/>兒童
<br/><br/><label>LC Class. No.: </label>Q181  / .H875