Perhaps one of these books might help.
Worlds of Tomorrow: The Amazing Universe of Science Fiction Art (Hardcover).
http://www.amazon.com/gp/product/188805493X/103-3923474-5402263?v=glance&n=283155
See also the links to other books on science fiction art on this page.
Might be able to ge the books through interlibrary loan if you don't want to buy them.
Bob
