Hoff, Arthur Gerhard,  1902- <br/><br/>
Secondary-school science teaching;  a textbook on how to teach science in the junior and senior high school. 

 - Philadelphia, :  Blakiston Co.,  [1950]. 
 - xi, 303 p.  22 cm. 
<br/><br/> Includes "Selected references." 
<br/><br/><label>LCCN: </label>47006291 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching.
<br/><br/><label>LC Class. No.: </label>QA 181   / H72 1947