To the basic references for Latin on pg. 15, n. 34 add Willms 2013. This book covers the historical phonology and morphology of Greek and Latin, but also has a good sketch of ancient grammatical theory, an overview of some modern approaches to Linguistics, external histories of Greek and Latin, chapters on the later histories of Greek and the Romance languages and on the influence of Latin and Romance on German and English.
To the resources for Vulgar Latin on pg. 503 add Adams 2013, although that categorization hardly does justice to Adams's latest magnum opus.
Adams, J. N. 2013. Social variation and the Latin language. Cambridge: cambridge University Press.
Willms, Lothar. 2013. Klassische Philologie und Sprachwissenschaft. Göttingen: Vandenhoeck & Ruprecht