Gréger, H., & Hofer, O. (1989). Accumulation of polyenoic acid piperideides, a characteristic chemical trend of Achillea millefolium ([Sonderdr.].).
Chicago Style (17th ed.) CitationGréger, Harald, and Otmar Hofer. Accumulation of Polyenoic Acid Piperideides, a Characteristic Chemical Trend of Achillea Millefolium. [Sonderdr.]. 1989.
MLA (9th ed.) CitationGréger, Harald, and Otmar Hofer. Accumulation of Polyenoic Acid Piperideides, a Characteristic Chemical Trend of Achillea Millefolium. [Sonderdr.]. 1989.
Warning: These citations may not always be 100% accurate.