APA (7th ed.) Citation

Hugo. (1991). Practical open systems: A guide for managers. Data General/NCC Blackwell.

Chicago Style (17th ed.) Citation

Hugo. Practical Open Systems: A Guide for Managers. Manchester: Data General/NCC Blackwell, 1991.

MLA (9th ed.) Citation

Hugo. Practical Open Systems: A Guide for Managers. Data General/NCC Blackwell, 1991.

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