Harwood, D. S., & Helley, E. J. (1987). Late Cenozoic tectonism of the Sacramento Valley, California. [Reston, Va.?] : Denver, CO: Dept. of the Interior, U.S. Geological Survey ; For sale by Books and Open-File Reports Section.
Chicago Style CitationHarwood, David S., and Edward J. Helley. Late Cenozoic Tectonism of the Sacramento Valley, California. [Reston, Va.?] : Denver, CO: Dept. of the Interior, U.S. Geological Survey ; For sale by Books and Open-File Reports Section, 1987.
MLA CitationHarwood, David S., and Edward J. Helley. Late Cenozoic Tectonism of the Sacramento Valley, California. [Reston, Va.?] : Denver, CO: Dept. of the Interior, U.S. Geological Survey ; For sale by Books and Open-File Reports Section, 1987.
Warning: These citations may not always be 100% accurate.