Fortunately, the Web provides a solution to the problem. I have included a few bookstore web sites along with a firm that sells academic papers via the web. Purchases through the web are easy to make and are much speedier than ordering through Bookmark or other bookstores. This is a fantastic web site that offers history students a vast array of materials, from ancient times to the present. The site does not confine itself to Western Civilization alone, but presents materials from all parts of the world.
Some offerings here are weak, but much of the index is quite good.
U.C. Riverside's history web site covers a multitude of topics. One needs to spend a bit of time to become familiar with the site's pathways, but the payoff is worthwhile. The L.O.C. offers links to electronic books, documents and texts. This is a good research tool for writing papers. Students who wish to find out about particular a history books will discover plenty of information here.