Agricultural problems / 
editor : Nguyen Khac Vien. 
 - Hanoi :  Xunhasaba,  1969. 
 - volumes ;  19 cm. 
 - Vietnamese studies ;  <no. 13, 27, 38, 51 > .
 - Vietnamese studies (Hanoi, Vietnam : 1966) ;    13, etc.   .
<br/><br/>v. 2. Rice.--v. 3. Some technical aspects.--v. 4. Agronomical data.--v. 5. The management of cooperatives.   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture -- Economic aspects -- Vietnam. <br/>Agriculture -- Vietnam.