TY  - BOOK
AU  - Eggert,Roderick G.
TI  - Metallic mineral exploration: an economic analysis 
SN  - 0915707306 (pbk. : alk. paper)
PY  - 1987///
CY  - Washington, D.C.
PB  - Resources for the Future
KW  - Prospecting
KW  - Costs
ER  -