TY - BOOK ED - United States TI - Cotton ginners handbook T2 - Agriculture handbook ; no. 503 PY - 1977/// CY - Washington PB - Dept. of Agriculture, Agricultural Research Service, for sale by the Supt. of Docs., U.S. Govt. Print. Off. KW - Cotton gins and ginning KW - Handbooks, manuals, etc KW - Local KW - Federal document Book N1 - Supersedes Agriculture handbook no. 260, "Handbook for cotton ginners", Feb. 1964; Issued July 1977; Includes bibliographical references ER -