TY  - BOOK
AU  - England. Agri.
TI  - Trace Elements in soils & Crops: Proc. of a Conf. organised by the Soil Scientis
T2  - Technical Bulletin No.21, ODM gift-Britain
U1  - 631.4 ENG-T 
PY  - 1971///
CY  - London
PB  - HMSO
ER  -