Look up the books below in the WU Classic Catalog. Can you determine the vendor? The restrictions? The number of concurrent users allowed?
Field Guide to Understanding Human Error -- http://catalog.wustl.edu:80/record=b6560110~S2
Evaluation of Rail Technology : A Practical Human Factors Guide -- http://catalog.wustl.edu:80/record=b6120971~S2
Cambridge Companion to the Roman Economy -- http://catalog.wustl.edu:80/record=b4957201~S2
Data Mining Algorithms in C++ -- http://catalog.wustl.edu:80/record=b6626314~S2
Siamese Cats -- http://catalog.wustl.edu:80/record=b6084466~S2
Algorithms for Scheduling Problems -- http://catalog.wustl.edu:80/record=b6754173~S2
The Elements of Library Research: What Every Student Needs to Know -- http://catalog.wustl.edu:80/record=b4987679~S2
Walt Whitman: The Measure of His Song -- http://catalog.wustl.edu:80/record=b5828755~S2
Walt Whitman, Where the Future Becomes Present -- http://catalog.wustl.edu:80/record=b6106644~S2
The Oxford Companion to Australian History -- http://catalog.wustl.edu:80/record=b4450628~S2
The New Palgrave Dictionary of Economics -- http://catalog.wustl.edu:80/record=b3553183~S2
Blackwell Guide to Literary Theory -- http://catalog.wustl.edu:80/record=b4136928~S2
The Life of Cheese: Crafting Food and Value in America -- http://catalog.wustl.edu:80/record=b6037746~S2
Police and Military Dogs -- http://catalog.wustl.edu:80/record=b4815617~S2
Explore for ebooks of interest, and find your own troubles--or, hopefully, solutions!