a study of the cretaceous-tertiary unvonformity in the piceance creek basin, colorado: the underlying Ohio creek formation (Upper cretaceous) redefined as a member of the hunter canyon or mesaverde formation. US Geological Survey Bulletin #1482-b
Johnson, Ronald C. and Fred May
Wash:: USGPO, 1980.. ppB1-B27 Very good (Item ID: 9357)
$7.50
