Subject heading list.

Subject heading list. - Prelim. ed. - Washington [For sale by the Superintendent of Documents, U.S. Govt. Print. Off.] 1963. - 4 v. (viii, 2434 p.) 28 cm.

Cover title.

agr63000307 //r892


Subject headings--Agriculture.

Z695.1.A4 / U4

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