If you’re at all like me, the first place you look for books is your public library.
My local library, Kinney Memorial, has On the Beach in its young adult section. Why a tale of nuclear holocaust is considered young adult reading is beyond me. But then The Bridge of San Luis Rey and Moby Dick are in the young adult section, too.
I got the rest of the 1957 bestsellers through interlibrary loan from the Four County Library System. To search the Four County Web site, click on Find a Book, Tape or CD. When the iBistro page opens, I suggest you choose the power seach option for the quickest results. There you can enter the author’s last name and the title you want to find.
You might want to check WorldCat for these and other bestsellers of yesteryear. Not all libraries post their databases to WorldCat, but many do. If you enter your zip code, WorldCat will list its member libraries holding a particular search item according to their distance from you.
Here are WorldCat links for 1957 bestsellers:
By Love Possessed http://worldcat.org/oclc/282476
Peyton Place http://worldcat.org/oclc/289487
Rally Round the Flag, Boys! http://worldcat.org/oclc/8834704
Blue Camellia http://worldcat.org/oclc/507485
Eloise in Paris http://worldcat.org/oclc/1386938
The Scapegoat http://worldcat.org/oclc/366147
On the Beach http://worldcat.org/oclc/366779
Below the Salt http://worldcat.org/oclc/282495
Atlas Shrugged http://worldcat.org/oclc/287605