Refractory Clay Deposits of South-Central Colorado
Subtitle: A Description of the Refractory and Semirefractory Clays in the Purgatoire Formation and Dakota Sandstone.
Contributors: Waage, K.M.
Series: U.S. Geological Survey bulletin -- 993
Publisher: s.n
Published: 1953
Place of publication: S.l
Language: eng
Notes: 1