/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%7BTillage.%7D&sort_by=relevance&format=rss 3 0 50 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=10892 By Duley, F. L..
Washington, D.C. : U.S. Dept. of Agriculture, 1948 .
32 p. : , Contribution from Soil Conservation Service in cooperation with Nebraska Agricultural Experiment Station. | Supersedes his Using crop residues for soil defense (Miscellaneous publication no. 494) and L. S. Carter's Stubble-mulch farming for soil defense (Farmers' bulletin no. 1917) 23 cm..

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=10892 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=12081 By Allmaras, R. R..
Washington] Agricultural Research Service, U.S. Dept. of Agriculture 1966 .
22 p. 26 cm..

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=12081 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=12375 By Gill, William R..
[Washington] Agricultural Research Service, U.S. Dept. of Agriculture; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1967 .
viii, 511 p. 24 cm..

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