It probably goes without saying, but The Forever War, by Joe Haldeman, has always been the book most, well, linked, to Starship Troopers and RAH. If you haven't read it, I'd highly suggest it - get one of the new editions of it, and there's a great interview with Haldeman, who talks about RAH's influence on his writing.
To stay a little more on topic, school libraries have, in some areas, a ridiculous amount of oversight - which is why so many of them these days feel safer purchasing multiple copies of books about effeminate vampires and the girls who love them, and avoiding entire sections of the ol' card catalog.
To stay a little more on topic, school libraries have, in some areas, a ridiculous amount of oversight - which is why so many of them these days feel safer purchasing multiple copies of books about effeminate vampires and the girls who love them, and avoiding entire sections of the ol' card catalog.