Blokland, A. <br/><br/>
Drainage 
/ A. Blokland 
. - Alger  : Institut national Agronomique, 1980
. - 96p.  : ill.couv.ill.  ; 27 cm 
<br/><br/><label>Source: </label>170727 
<br/><br/><label>Universal Decimal Class. No.: </label>631.62.