Mella, W. I. I. (1991). Effects of conservation tillage and conventional tillage on selected physical and chemical properties of a Blackland Praire soil in Texas. [publisher not identified].
Chicago Style (17th ed.) CitationMella, Welhelmus Isak Imanuel. Effects of Conservation Tillage and Conventional Tillage on Selected Physical and Chemical Properties of a Blackland Praire Soil in Texas. [Place of publication not identified]: [publisher not identified], 1991.
MLA (9th ed.) CitationMella, Welhelmus Isak Imanuel. Effects of Conservation Tillage and Conventional Tillage on Selected Physical and Chemical Properties of a Blackland Praire Soil in Texas. [publisher not identified], 1991.
Warning: These citations may not always be 100% accurate.