TY  - BOOK
ED  - United Nations.
TI  - Mineral resources development with particular reference to the developing countries
AV  - JX1977 .A2 ST/ECA/123
U1  - 333.8'09172'4 
PY  - 1970///
CY  - New York
PB  - United Nations
KW  - Mineral industries
KW  - Mines and mineral resources
N1  - "United Nations publication. Sales no.: E.70.II.B.3."
N2  - The book recognised that the accidental discovery of rich and readily exploitable deposits is becoming ever more of a rarity, that much now depends on time-consuming and costly exploration and development
ER  -