Upper Proterozoic and Cambrian rocks in the Caborca region, Sonora, Mexico - physical stratigraphy, biostratigraphy, paleocurrent studies and regional relations.  by J.H. Stewart [and others]
Publisher: U.S.  Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 36
Subjects: Geology - Mexico
Notes: 11