Maas, Peter <br/><br/>
Underboss :  Sammy the Bull Gravano's story of life in the Mafia / 
Peter Maas. 
 - London :  HarperCollins,  1997. 
 - 500 p. ;  17 cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Gravano, Salvatore,<br/>Gotti, John.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mafia--Biography.--United States<br/>Mafia--New York (State)<br/>Organized crime--New York (State)