在您的搜寻 主题建议
在您的搜寻 主题建议
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1出版 1907Ames, Iowa : Iowa State College of Agriculture and the Mechanic Arts, Extension Dept., 1907-1908.2 v. : ill. ; 22 cm.主题: “...Agriculture Iowa....”
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2出版 1921Ames, Iowa : The Dept., 1921.25 no. : ill. ; 22 cm.主题: “...Agriculture Iowa Periodicals....”
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3出版 1907Ames, Iowa : The Dept., 1907-1908.2 no. : ill. ; 22 cm.主题: “...Agricultural extension work Iowa Periodicals....”
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4出版 1910Ames, Iowa : The Dept., 1910-1912.4 no. : ill. ; 22 cm.主题: “...Agriculture Iowa Periodicals....”
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5出版 1921Ames, Iowa : The Dept., 1921.25 no. : ill. ; 22 cm.主题: “...Agricultural extension work Iowa Periodicals....”
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6出版 1910Ames, Iowa : The Dept., 1910-1920.55 no. : ill. ; 22 cm.主题: “...Agricultural extension work Iowa Periodicals....”