Langley, Rita- <br/><br/>
Teaching elementary science:   the teacher's guide to effective classroom activities/ 
Rita Langley. 
 - N.Y  Parker Pub. Co. : West Nyack  1968 
 - viii, 276 p.:   illus.;   24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>68-017836 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary)