Charles Babbage on the principles and development of the calculator : : and other seminal writings /

ανά Babbage, Charles, 1791-1871
Έκδοση 1961

Charles Babbage : pioneer of the computer /

ανά Hyman, Anthony
Έκδοση 1984

Science and reform : selected works of Charles Babbage /

ανά Babbage, Charles, 1791-1871
Έκδοση 1989

Charles Babbage : pioneer of the computer /

ανά Hyman, Anthony
Έκδοση 1982