Are Murder of a Mafia Daughter and Murder in Beverley Hills one book or two? edit

https://www.books-by-isbn.com/0-934878/0934878498-Murder-of-a-Mafia-Daughter-The-Story-Behind-Suspicions-Robert-Durst-Murdered-Susan-Berman-amp-Her-Life-and-Tragic-Death-0-934878-49-8.html (2nd ed) https://www.books-by-isbn.com/1-56980/1569802386-Murder-of-a-Mafia-Daughter-The-Life-and-Tragic-Death-of-Susan-Berman-1-56980-238-6.html (1st ed)

https://www.books-by-isbn.com/1-4343/1434305600-Murder-in-Beverly-Hills-The-Mob-Style-Execution-of-Susan-Berman-Her-Crime-Boss-Father-and-the-Deadly-Secret-She-Took-to-Her-Grave-1-4343-05.html

The second title is mentioned in the article but the relationship to the main title is not clear to me. Tschild (talk) 17:28, 21 February 2018 (UTC)Reply