The book "Saint Petersburg, Capital of the Russian Empire" is one of my favorite books. The photographs are wonderful. I would recommend it to anyone interested in pre-1917 Russia.
If I remember correctly, I bought my book new on an upper floor at Dom Knige, the old Singer Sewing machine building, across from the Kazan Cathedral. One should be able to find a copy if one does a good sweep of the art oriented book stores near the Admiralty.
DAP