TY  - BOOK
AU  - Research co-ordination meeting on Recent developments in the use of Nitrogen-15 in soil plant studies Sofia, Dec.1-5,1969.
TI  - Nitrogen-15 in soil plant studies; proceedings
T2  - Panel proceeding series
U1  - 631.416.1 1969.12.1/5 (082.2) L1 
PY  - 1971///
CY  - Vienna
PB  - IAEA
KW  - Nitrogen,Soil science
ER  -