http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Stratigraphy of the Upper Cretaceous rocks north of the Arkansas river in eastern Colorado
ii, 207-232 pages, 2 unnumbered leaves of plates : illustrations, maps (1 folded) ; 29 cm.
by C.H. Dane, W.G. Pierce, and J.B. Reeside, Jr.
Geological Survey professional paper ; no. 186-K
Shorter contributions to general geology ; 1936