The architecture of A. Palladio, in four books : containing a short treatise of the five orders, and the most necessary observations concerning all sorts of building : as also the different construction of private and publick houses, high-ways, bridges, market-plates, xystes, and temples, with their plans, sections, and uprights (1742)
Palladio, Andrea, 1508-1580 · London : Printed for A. Ward ... : S. Birt ... : D. Browne ... : C. Davis ... : T. Osborne ... : and A. Millar ... · leaf 252
Architecture -- Early works to 1800 · Architecture, Classical -- Designs and plans -- Early works to 1800 · Heating -- History · Architecture -- Orders -- Designs and plans -- Early works to 1800 · Rome (Italy) -- Antiquities
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.