Piltz, Albert,  1915- <br/><br/>
Science equipment and materials :  science kits, 
by Albert Piltz and William J. Gruver. 
 - [Washington]  U.S.Dept. of Health, Education, and Welfare, Office of Education ; [for sale by the Superintendent of Documents, U.S. Govt. Print. Off.,  1963] 
 - v, 26 p. :  tables. 
<br/><br/> "OE-29049." 
<br/><br/>Copies 1 and 3 with: Education in Czechoslovakia / Nellie Apanasewicz. Washington : U.S.Dept. of Health, Education, and Welfare, Office of Education, 1963. Bound together subsequent to publication. 
<br/><br/>Bibliography : p.26. 
<br/><br/><label>LCCN: </label>hew64000012  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching.<br/>Teaching--Aids and devices.
<br/><br/><label>LC Class. No.: </label>L111  / .A6 1963, no. 30