Riess, K., & Sajak, D. (1988). Agrargeographie. Aulis-Verlag Deubner.
Chicago Style (17th ed.) CitationRiess, Konrad, and Dieter Sajak. Agrargeographie. Köln: Aulis-Verlag Deubner, 1988.
MLA (9th ed.) CitationRiess, Konrad, and Dieter Sajak. Agrargeographie. Aulis-Verlag Deubner, 1988.
Warning: These citations may not always be 100% accurate.