Bob Adey wrote the standard bibliography of Locked Room Murders and other Impossible Crimes, called, if you can believe it Locked Room Murders. The first edition came out from Ferret Fantasy in 1979, and a revision was published in 1991 by Crossover Press.
Last year Locked Room International released another version of the 1991 book--it was just a minor revision with some corrections and additional sources for short stories.
This year I'm finishing a brand new edition that will contain all the locked room mysteries since 1991. I was trying to be done in time for June, but I think it will go into July.