Smith, W. D. (1918). A summary of the salient features of the geology of the Oregon Cascades: With some correlations between the geology of the east coast of Asia and that of the west coast of America. State Printing Dept..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Smith, Warren D. A Summary of the Salient Features of the Geology of the Oregon Cascades: With Some Correlations Between the Geology of the East Coast of Asia and That of the West Coast of America. Salem, Or.: State Printing Dept., 1918.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Smith, Warren D. A Summary of the Salient Features of the Geology of the Oregon Cascades: With Some Correlations Between the Geology of the East Coast of Asia and That of the West Coast of America. State Printing Dept., 1918.
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