HARDEN, J. W., & BROWN, W. P. (1980). Soil conditioning and seed bed preparing apparatus.
Chicago Style (17th ed.) CitationHARDEN, JERRELL W., and WILLIAM P. BROWN. Soil Conditioning and Seed Bed Preparing Apparatus. 1980.
MLA (9th ed.) CitationHARDEN, JERRELL W., and WILLIAM P. BROWN. Soil Conditioning and Seed Bed Preparing Apparatus. 1980.
Warning: These citations may not always be 100% accurate.