Weil, Ray R. and Brady, Nyle C. <br/><br/>
The nature and properties of soils / 
Ray R. Well and Nyle C. Brady. 
 - Fifteenth Edition. 
 - Malaysia:  Pearson education limited,  2017. 
 - 1104p.:  ill. col.;  28 cm. 
<br/><br/><label>ISBN: </label>978-1-292-16223-2