Title
APT Building Technology Heritage Library
Description
The Building Technology Heritage Library (BTHL) is primarily a collection of architectural trade catalogs, house plan books, and technical building guides. Trade catalogs are an important primary source to document past design and construction practices. These materials can aid in the preservation and conservation of older structures as well as other research goals. The BTHL is hosted by the Internet Archive as a free public access site for documents in the public domain.
Rights
https://archive.org/details/@apt_heritage_library
Local URL
https://www.apti.org/apt-building-technology-heritage-library