EX-MOB underboss Philip Leonetti's book,

Mafia Prince: Inside America's Most Violent Crime Family and the Bloody Fall of La Cosa Nostra

, was published Tuesday by Running Press.

Retail price is $24, but it can be found on Amazon for as little as $14.66. The book was cowritten by Scott Burnstein, a true-crime author and staff reporter for the Oakland Press, and Christopher Graziano, a freelance journalist and mob historian.

It's an eye-opening look at life inside the Philadelphia-South Jersey mob during the 1980s.