TY  - BOOK
AU  - Great Britain. National Agricultural Advisory Service  
ED  - Great Britain. National Agricultural Advisory Service
TI  - Trace elements in soils and crops: proceedings of a Conference organized by the Soil Scientists of the National Agricultural Advisory Service, Feb. 8th-9th, 1966
SN  - 112409210
PY  - 1971///
CY  - London
PB  - Her Majesty's Stationery Office
ER  -