Benzer Materyaller: Black Book - AT&T (American Telephone & Telegraph Company): 1988
- Black Book - AT&T (American Telephone & Telegraph Company): 1977
- Black Book - AT&T (American Telephone & Telegraph Company): 1984
- Black Book - AT&T (American Telephone & Telegraph Company): 1980
- Black Book - AT&T (American Telephone & Telegraph Company): 1979
- Black Book - Divesture: An Evaluation of the American Telephone & Telegraph Company (1983)
- Black Book - American Telephone & Telegraph Company: A Strategic Response to Competition in the 1980's