Hardt, P. F. (1990). Animal performance on small grain pastures with and without sulfur fertilizer. [publisher not identified].
Chicago Style (17th ed.) CitationHardt, Paul Frederick. Animal Performance on Small Grain Pastures with and Without Sulfur Fertilizer. [Place of publication not identified]: [publisher not identified], 1990.
MLA (9th ed.) CitationHardt, Paul Frederick. Animal Performance on Small Grain Pastures with and Without Sulfur Fertilizer. [publisher not identified], 1990.
Warning: These citations may not always be 100% accurate.