Key Writers on Art (vols 1 & 2)
1. Antiquity to the Nineteenth Century
Oxford Bibliographies
Art History: It's Use and Abuse
Encyclopedia of World Art
In addition to the sources used for general art history, architecture has some great specialized tool.
Archives
Cities and their constituent universities often have specialized collections Chicago is used as an example
CITY LINKS:
University of Chicago - Sengstacke Archives https://luna.lib.uchicago.edu/luna/servlet/view/all/what/Chicago+%28Ill.%29?sort=creator%2Cculture%2Cdate%2Cstyle_or_period
ETHNICITIES WITHIN A CITY
GENERAL