TY  - BOOK
CN  - QK769
CN  - QK769
CY  - Cincinnati, Ohio :
DA  - 1981.
ID  - 33358
KW  - Plants
KW  - Plants
KW  - Zinc.
N1  - "February 1981."
PB  - Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
PP  - Cincinnati, Ohio :
PY  - 1981.
T1  - Effects of sewage sludge on the cadmium and zinc content of crops /
TI  - Effects of sewage sludge on the cadmium and zinc content of crops /
ER  -