TY  - BOOK
TI  - Agricultural problems
T2  - Vietnamese studies
PY  - 1969///
CY  - Hanoi
PB  - Xunhasaba
KW  - Agriculture
KW  -  Economic aspects
KW  -  Vietnam.
N1  - --v. 2. Rice.--v. 3. Some technical aspects.--v. 4. Agronomical data.--v. 5. The management of cooperatives.
ER  -