TY  - BOOK
AU  - Tatsch,J.H.
TI  - Petroleum deposits: origin, evolution, and present characteristics 
SN  - 0912890061
AV  - TN870.5 .T37
U1  - 553/.28 
PY  - 1974///
CY  - Sudbury, MA
PB  - Tatsch Associates
KW  - Petroleum
N1  - Includes index; Bibliography: p. 278-357
ER  -