"Reprinted from the Forest club annual, the University of Nebraska," 1909, i, 21-34.Mode of access: Internet
"Reprinted from Yearbook of the U.S. department of agriculture for 1895."Mode of access: Internet
Contrib.Dept.Bot.Columbia Univ. 185.Bull. Torr. Club, xxvii. 1901, pp. 454-484.Mode of access: Inter...
"Reprinted from the Agricultural journal of March 18th, 1897."Mode of access: Internet
"Reprinted from Forest Club Annual, University of Nebraska, Vol. V, 1913."Mode of access: Internet
"Reprinted from Forest club annual, University of Nebraska," 1912, iv, 51-60.Mode of access: Interne...
Reprinted from University of Colorado studies, v. 5, no. 2, Feb. 1908.Title from caption.Mode of acc...
"Reprinted from the Journal of forestry and estate management."Mode of access: Internet
"Reprinted from University of Colorado Studies, Vol. VI, No. 2, Boulder, Colo., February, 1909," p. ...
"Contribution from the Botanical survey of Nebraska. New series, number 3. March, 1919."Mode of acce...
Reprinted from: Annual report of the Nebraska State Board of Agriculture, 1899.Mode of access: Inter...
"2d ed.""Contribution from the Botanical survey of Nebraska. New series, number 3. March, 1919."Mode...
"Reprinted from the Yearbooks of the U.S. Dept. of Agriculture for 1894 and 1895."Cover title.Mode o...
Reprint from Proceedings of the Academy of Natural Sciences of Philadelphia, Jan. 1907.Cover title.M...
"Extracted from the Report of the Nebraska state board of agriculture, for 1889."Mode of access: Int...
"Minnesota botanical studies, vol. IV, part III, 1914."Thesis--University of Nebraska, 1913."Literat...
"Reprinted from Yearbook of the U.S. department of agriculture for 1895."Mode of access: Internet
Contrib.Dept.Bot.Columbia Univ. 185.Bull. Torr. Club, xxvii. 1901, pp. 454-484.Mode of access: Inter...
"Reprinted from the Agricultural journal of March 18th, 1897."Mode of access: Internet
"Reprinted from Forest Club Annual, University of Nebraska, Vol. V, 1913."Mode of access: Internet
"Reprinted from Forest club annual, University of Nebraska," 1912, iv, 51-60.Mode of access: Interne...
Reprinted from University of Colorado studies, v. 5, no. 2, Feb. 1908.Title from caption.Mode of acc...
"Reprinted from the Journal of forestry and estate management."Mode of access: Internet
"Reprinted from University of Colorado Studies, Vol. VI, No. 2, Boulder, Colo., February, 1909," p. ...
"Contribution from the Botanical survey of Nebraska. New series, number 3. March, 1919."Mode of acce...
Reprinted from: Annual report of the Nebraska State Board of Agriculture, 1899.Mode of access: Inter...
"2d ed.""Contribution from the Botanical survey of Nebraska. New series, number 3. March, 1919."Mode...
"Reprinted from the Yearbooks of the U.S. Dept. of Agriculture for 1894 and 1895."Cover title.Mode o...
Reprint from Proceedings of the Academy of Natural Sciences of Philadelphia, Jan. 1907.Cover title.M...
"Extracted from the Report of the Nebraska state board of agriculture, for 1889."Mode of access: Int...
"Minnesota botanical studies, vol. IV, part III, 1914."Thesis--University of Nebraska, 1913."Literat...
"Reprinted from Yearbook of the U.S. department of agriculture for 1895."Mode of access: Internet
Contrib.Dept.Bot.Columbia Univ. 185.Bull. Torr. Club, xxvii. 1901, pp. 454-484.Mode of access: Inter...
"Reprinted from the Agricultural journal of March 18th, 1897."Mode of access: Internet