Niessen, J., Lehmann, E., & Snell, K. (1917). Schaf- und Sumpfgarbe (Achillea). DLG.
Chicago Style (17th ed.) CitationNiessen, Josef, Ernst Lehmann, and Karl Snell. Schaf- Und Sumpfgarbe (Achillea). Berlin: DLG, 1917.
MLA (9th ed.) CitationNiessen, Josef, et al. Schaf- Und Sumpfgarbe (Achillea). DLG, 1917.
Warning: These citations may not always be 100% accurate.