Historical Phonology of Latin
Allen, W.S. 1978. Vox Latina: A guide to the Pronunciation of Latin. 2nd ed.Cambridge. HOLLIS Record
Niedermann, M. 1953. Précis de phonétique historique du latin. 3. éd. Paris. HOLLIS Record
Schrijver, P. 1991. The reflexes of the Proto-Indo-European laryngeals in Latin. Amsterdam. HOLLIS Record
Sommer, F. and R. Pfister. 1977. Handbuch der lateinischen Laut- und Formenlehre. Bd. 1. Einleitung und Lautlehre. 4. Aufl. Heidelberg. HOLLIS Record
See also sources listed under General Historical Grammar