The new universal library :  volume eighteen  / 
International Learning Systems Corporation Ltd 
 - London :  International Learning Systems Corporation Ltd,  c1969 
 - 480 p. :  ill. (some col.) ;  26 cm. 
<br/><br/> CONTENTS<br/><br/>THE YOUNGER ENGINEER<br/>Explaining mechanical things to children<br/>helping daddy to mend things that go wrong<br/>what's inside<br/>e.tc<br/><br/>THE YOUNG SCIENTIST<br/>mechanics<br/>sound<br/>light<br/>heat<br/>air and water<br/>magnetism and electricity<br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>encyclopedias  and dictionaries<br/>library
<br/><br/><label>Dewey Class. No.: </label>031.2  / UNI