Harbaugh, J. W. (1978). Stratigraphy and the geologic time scale. WMC Brown.
Chicago Style CitationHarbaugh, John W. Stratigraphy and the Geologic Time Scale. WMC Brown, 1978.
MLA CitationHarbaugh, John W. Stratigraphy and the Geologic Time Scale. WMC Brown, 1978.
Warning: These citations may not always be 100% accurate.