TY  - BOOK
AU  - 
TI  - LEAD AND ZINC INTO THE 80'S
U1  - 669.4 
PY  - 1977///
CY  - London
PB  - Zinc Development Association
KW  - Lead -- Congresses
KW  - Zinc -- Congresses
N1  - Incorporates The Sixth International Lead Conference
ER  -