Arkhypenko, F. M., & Derbal, Y. M. (2002). Energy and economic value of Echinacea purpurea L. growing.
Chicago Style (17th ed.) CitationArkhypenko, F. M., and Yu. M. Derbal. Energy and Economic Value of Echinacea Purpurea L. Growing. 2002.
MLA (8th ed.) CitationArkhypenko, F. M., and Yu. M. Derbal. Energy and Economic Value of Echinacea Purpurea L. Growing. 2002.
Warning: These citations may not always be 100% accurate.