APA (7th ed.) Citation

O'Shea, G. (1991). Security in computer operating systems / G. O'Shea. NCC Blackwell.

Chicago Style (17th ed.) Citation

O'Shea, G. Security in Computer Operating Systems / G. O'Shea. NCC Blackwell, 1991.

MLA (9th ed.) Citation

O'Shea, G. Security in Computer Operating Systems / G. O'Shea. NCC Blackwell, 1991.

Warning: These citations may not always be 100% accurate.