TY  - BOOK
AU  - Richardson,G.B.
TI  - Reconnaissance of the Book cliffs coal field between Grand river, Colorado and Sunnyside, Utah,
T2  - United States. Geological survey. Bulletin
AV  - QE75 .B9 no. 371
PY  - 1909///
CY  - Washington
PB  - Govt. Print. Off.
KW  - Geology
KW  - Utah
KW  - Colorado
KW  - Coal mines and mining
ER  -