Head, K.H. and Epps, R.J. <br/><br/>
Manual of soil laboratory testing 

 - 3rd ed. 
 -  Whittles publishing  2011 
<br/><br/><label>ISBN: </label>9781439869888 
<br/><br/><label>Dewey Class. No.: </label>624.151  / T11 HEA E