On agriculture - Hooper, William Davis (1868-?).; Ash, Harrison Boyd (1891- ).; Varro, Marcus Terentius (116-27 a.C.); Cato, Marcus Porcius (234-149 a.C.) (Cambridge, MA London Harvard University Press, 2006)
Bibliogr. p. XXIII-XXV. Index
Original text in Latin with translation in English on opposite page