CRESSMAN, E. R. (1964). Geology of the Georgetown Canyon-Snowdrift Mountain Area, Southeastern Idaho: : A study of an area of high-grade Phosphate rock deposits. United states Government Printing office.
Cita Chicago Style (17a ed.)CRESSMAN, Earle R. Geology of the Georgetown Canyon-Snowdrift Mountain Area, Southeastern Idaho: : A Study of an Area of High-grade Phosphate Rock Deposits. Washington: United states Government Printing office, 1964.
Cita MLA (9a ed.)CRESSMAN, Earle R. Geology of the Georgetown Canyon-Snowdrift Mountain Area, Southeastern Idaho: : A Study of an Area of High-grade Phosphate Rock Deposits. United states Government Printing office, 1964.
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