Hanna, Paul Robert, 1902- <br/><br/>
Geography in the teaching of social studies :  concepts and skills / 
by Paul R. Hanna and others 
 - Boston :  Houghton Mifflin,  1966 
 - xi, 511 p.:  ill., ;  24 cm. 
<br/><br/>Includes bibliographies 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography--Study and teaching (Elementary)<br/>Social sciences--Study and teaching (Elementary)