Hello, I'm looking for sources of MARC records for art/architecture
books, American/British as well as German, French, and Italian. The
limiting factor is that my cataloguing program accepts only what I
know as the "machine-readable" MARC format, not the "human-readable"
with each field printed on a separate line. The Library of Congress
is a great source, of course, but are there others, especially for
more obscure European books?

Thank you,
Ed