Contribution from Bureau of agricultural economics."Sources consulted": p. II.Mode of access: Internet
"Reprinted from the Agricultural journal of March 18th, 1897."Mode of access: Internet
Repr. from yearbook of Department of Agriculture for 1908.Mode of access: Internet
From U.S. Office of education. Bulletin, 1930, no.9, vol.1.Mode of access: Internet
Contribution from Bureau of Agricultural Economics.Cover title.Bibliograhy: p. 71-73.Mode of access:...
Caption title."Contribution from Bureau of Agricultural Economics."Bibliography: p. 62-63.Mode of ac...
Caption title."Contribution from Bureau of Agricultural Economics."Includes bibliographical referenc...
Caption title."Contribution from Bureau of Agricultural Economics."Includes bibliographical referenc...
Literature cited: p. 84-86.Contribution from Bureau of Agricultural Economics.Cover title.Mode of ac...
Maps on lining-papers."A selected reference list": p. [175]-180.Mode of access: Internet
Mode of access: Internet.Prior to 1936 the information contained in the present volume was published...
Reprinted from the Journal of the Royal agricultural society of England, v. 87, 1926.Cover-title."Re...
"Reprinted from the Yearbooks of the U.S. Dept. of Agriculture for 1894 and 1895."Cover title.Mode o...
Includes index.Issued October, 1928.Cover title.Bibliography: p. 202-218.Mode of access: Internet
Thesis (M.A.)--Univ. of California. May, 1922."References": p. 96-101.Mode of access: Internet
"Reprinted from the Annals of the American academy of political and social science for November, 190...
"Reprinted from the Agricultural journal of March 18th, 1897."Mode of access: Internet
Repr. from yearbook of Department of Agriculture for 1908.Mode of access: Internet
From U.S. Office of education. Bulletin, 1930, no.9, vol.1.Mode of access: Internet
Contribution from Bureau of Agricultural Economics.Cover title.Bibliograhy: p. 71-73.Mode of access:...
Caption title."Contribution from Bureau of Agricultural Economics."Bibliography: p. 62-63.Mode of ac...
Caption title."Contribution from Bureau of Agricultural Economics."Includes bibliographical referenc...
Caption title."Contribution from Bureau of Agricultural Economics."Includes bibliographical referenc...
Literature cited: p. 84-86.Contribution from Bureau of Agricultural Economics.Cover title.Mode of ac...
Maps on lining-papers."A selected reference list": p. [175]-180.Mode of access: Internet
Mode of access: Internet.Prior to 1936 the information contained in the present volume was published...
Reprinted from the Journal of the Royal agricultural society of England, v. 87, 1926.Cover-title."Re...
"Reprinted from the Yearbooks of the U.S. Dept. of Agriculture for 1894 and 1895."Cover title.Mode o...
Includes index.Issued October, 1928.Cover title.Bibliography: p. 202-218.Mode of access: Internet
Thesis (M.A.)--Univ. of California. May, 1922."References": p. 96-101.Mode of access: Internet
"Reprinted from the Annals of the American academy of political and social science for November, 190...
"Reprinted from the Agricultural journal of March 18th, 1897."Mode of access: Internet
Repr. from yearbook of Department of Agriculture for 1908.Mode of access: Internet
From U.S. Office of education. Bulletin, 1930, no.9, vol.1.Mode of access: Internet