Allied Chemical Corporation. Nitrogen Division & Stangel, H. J. (1964). Urea and non-protein nitrogen in ruminant nutrition (2d ed.). [publisher not identified].
Chicago Style (17th ed.) CitationAllied Chemical Corporation. Nitrogen Division and Harvey J. Stangel. Urea and Non-protein Nitrogen in Ruminant Nutrition. 2d ed. [New York?]: [publisher not identified], 1964.
MLA (9th ed.) CitationAllied Chemical Corporation. Nitrogen Division and Harvey J. Stangel. Urea and Non-protein Nitrogen in Ruminant Nutrition. 2d ed. [publisher not identified], 1964.
Warning: These citations may not always be 100% accurate.