Specification for concrete porous pipes for under drainage / 
Standards  and Industrial Research Institute of Malaysia 
 - 28 pages :  illustrations ;  21 cm. 
 - Malaysian standard;  MS 7.21 : 1977 .
 - Malaysian standard ;  MS 7.21 : 1977 .
<br/><br/><label>ISBN: </label> RM20.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pipe, Concrete<br/>Concrete--Testing