Humphrey, D. <br/><br/>
Intermediate mechanics  statics 
D. Humphrey and edited by J. Topping. 
 - SI Edition. 
 - London  Longman  c1971. 
 - 2 vol. xii, 515p.  ill.  21cm. 
<br/><br/><label>ISBN: </label>0582322383 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Mathematics.