Togeby, Knud. 1970. “Directions for Historical Linguistics. A Symposium. Edited by W. P. Lehmann and Yakov Malkiel. 199 Pages - 6,50 Dollars - University of Texas Press, Austin & London, 1968”. Revue Romane 2 (januar). https://tidsskrift.dk/revue_romane/article/view/28923.