de Vaan, Michiel. 2008. Etymological Dictionary of Latin and the other Italic Languages. Leiden: Brill.
@book{jacquesestimative-devaan08latin,
author = {de Vaan, Michiel},
publisher = {Leiden: Brill},
title = {Etymological Dictionary of Latin and the other Italic Languages},
year = {2008}
}