Fries, M. (1851). Handbuch der praktischen Landwirthschaft.
Chicago Style (17th ed.) CitationFries, Martin. Handbuch Der Praktischen Landwirthschaft. 1851.
MLA (9th ed.) CitationFries, Martin. Handbuch Der Praktischen Landwirthschaft. 1851.
Warning: These citations may not always be 100% accurate.