Vessel, M.F. <br/><br/>
Elementary school science teaching. 
M.F. Vessel. 
 - New Delhi:  Prentice Hall;  1965. 
 - viii, 119p. 
<br/><br/><label>Subjects--Index Terms: </label>Elementary science. Science teaching. 
<br/><br/><label>Universal Decimal Class. No.: </label>51:372.4  / VES