Perkins, Philip Harold <br/><br/>
Concrete structures :  repair, waterproofing and protection / 
Philip H. Perkins 
 - London : [s.n],  1976 
 - 302p. :  ill ;  23 cm. 
<br/><br/><label>ISBN: </label>0853346976 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Concrete construction--Maintenance and repair<br/>Water proofing<br/>Concrete coatings