TY  - BOOK
AU  - Tapp B A
AU  - Watkins J R
TI  - Energy and mineral resource systems: an introduction 
SN  - 0521302870
AV  - TN263.5 
U1  - 333.79 
PY  - 1990///
CY  - Cambridge [England], New York
PB  - Cambridge University Press
KW  - Energy minerals
KW  - Mines and mineral resources
N1  - Includes index; Bibliography: p. 149-150
ER  -