Hanna, Lavone Agnes <br/><br/>
Unit teaching in the elementary school / 
by  Lavone Agnes Hanna. Gladys L Potter and Neva Hagaman 
 - New York :  Rinehart,  1955. 
 - 595p. :  illus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education, Elementary
<br/><br/><label>Dewey Class. No.: </label>372  / HAN.U