Albrecht Thaers Grundsaetninger for Landoeconomien - Thaer, Albrecht Daniel 1752-1828 (Trykt hos J.F. Schultz, 1816)
Goldsmiths'-Kress no. 21424.19. - OCLC, 17191963. - Reproduction of original from Kress Library of Business and Economics, Harvard University. - Translation of: Grundsätze der rationellen Landwirthschaft