TY  - BOOK
AU  - Joint FAO/IAEA Research Coordination Meeting, Sofia, 1970
TI  - Nitrogen-15 in Soil-Plant Studies
U1  - 631.84 
PY  - 1971///
CY  - Vienna
PB  - International Atomic Energy Agency
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Nitrogen
KW  - Soils
ER  -