De causis plantarum : in three volumes - Theophrastus, <ca. 371-287 a.C.>. (OLS)http://semarc/name/9500; Einarson, Benedict. (OLS)http://semarc/name/9576; Link, George Konrad Karl. (OLS)http://semarc/name/9577 (Harvard University Press ; Heinemann, 1976)
Testo in inglese e greco