Donev, Kiril,  kandidat na ikonomicheskite nauki, <br/><br/>
Irrigated agriculture in Bulgaria / 
Kiril Donev ; translated by Petko Denkov ; edited by Krassimira Noneva 
 - 71 páginas :  ilustraciones 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Riego--Bulgaria<br/>Ingeniería hidráulica--Bulgaria
<br/><br/><label>LC Class. No.: </label>S616.B8  / D6513 
<br/><br/><label>Dewey Class. No.: </label>631.7/094977