@book{ title = "On agriculture", author = "Columella, Lucius Iunius Moderatus", year = "1977", publisher = "Harvard Univ. Press [u.a.]", address = "Cambridge, Mass.", edition = "Nachdr. der Ausg. 1941", title = "in three volumes", language = "lat","eng", howpublished = "print", isbn = "0674993985","0434993611", series = "The Loeb Classical Library, 361", }