Hello folks. I wanted to know by which method is possible to retrieve the scanned (mostly old) PDF books from books.google. They isn't sold, so this is not the simple and obvious answer they can't be borrowed as on archive.org, not behind paywall, only searchable. I'm little confused.

Especially I want this three titles:
Let Tomorrow Come by A.J. Barr - https://books.google.ro/books/about/Let ... edir_esc=y
The Ghost: The Adventures of a Swedish Sailor by Karl E. Stahl - https://books.google.ro/books?redir_esc ... me&q=Stahl
Three Nails by Harold Alfred Manhood - https://books.google.ro/books?hl=ru&id= ... me&q=Nails
but there is many more desirable titles.

Please, share if you know.