In addition to that, we have great extra repositories
for checking the
existence of a purported print source at
amazon.com and also at
abe.com
and
alibris.com Amazon tends toward in-print titles, while
abe.com
tends toward out-of-print titles, including very rare titles as well
since it is, in contract to worldcat, the listings of the repositories
of hundreds if not thousands of *bookstores*. That would include rare
and second-hand bookstores.
Don't completely ignore eBay. Sometimes weird and wonderful stuff
appears there. The only problem being that the descriptions are only
there for a short time.
Ec