Osborn, J., Jensen, D., & Draffan, G. (1995). Railroads & clearcuts: Legacy of Congress's 1864 Northern Pacific Railroad land grant, a photographic essay. Inland Empire Public Lands Council.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOsborn, John, Derrick Jensen, और George Draffan. Railroads & Clearcuts: Legacy of Congress's 1864 Northern Pacific Railroad Land Grant, a Photographic Essay. Spokane, Wash.: Inland Empire Public Lands Council, 1995.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOsborn, John, et al. Railroads & Clearcuts: Legacy of Congress's 1864 Northern Pacific Railroad Land Grant, a Photographic Essay. Inland Empire Public Lands Council, 1995.
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