TY  - BOOK
AU  - Young,John E.
AU  - Ayres,Ed
TI  - Mining the earth
SN  - 1878071114 (pbk.) :
AV  - TD195.M5 Y68 1992
U1  - 333.76/514 20
PY  - 1992///
CY  - Washington, D.C.
PB  - Worldwatch Institute
KW  - Mineral industries
KW  - Environmental aspects
N1  - "July 1992."; Includes bibliographical references (p. 46-53)
ER  -