00736cam a2200253 4500 88481462 TxAuBib 19991018120000.0 991018s1997||||||||||||||||||||||||eng|u 9780060182564 0060182563 (OCoLC)36755664 TxAuBib Maas, Peter. Underboss : Sammy the Bull Gravano's Story of Life In the Mafia. New York : HarperCollinsPublishers, 1997. 308 pages. Adult. 20101208. Gravano, Salvatore. Gotti, John. Mafia New York Case studies. TXYCL