TY  - BOOK
AU  - Nicholas, D J D., ed.
AU  - Egan, A R, ed.
TI  - Trace elements in soil-plant animal systems
SN  - 0125181507
U1  - 631.416/NIC 
PY  - 1975///
CY  - New York
PB  - Academic Press, Inc.
KW  - trace element-Metabolism
ER  -