Ernest Hemingway 's For whom the bell rings (1940)

For Whom the Bell Tolls is a 1940 novel by Ernest Hemingway. Garbo and Jean Harlow are both mentioned in the classic.

Once is not Enough by Jacqueline Susann (1973)

Once Is Not Enough is a 1973 novel by Jacqueline Susann. It was the #2 best-selling novel of 1973 in the United States. It was made into a 1975 film, Jacqueline Susann's Once Is Not Enough, starring Kirk Douglas, David Janssen, and Brenda Vaccaro.

In the novel, a lesbian character is based on Garbo.