Harrison, R.D.. <br/><br/>
Longman physics topics:Forces /  
by R.D.Harrison. 
 - 1st.End. /  
 - London :   Longman Group Limited ,   1961 
 - 48p ;  
<br/><br/><label>ISBN: </label>0 582 32174 3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>C32  / K8