APA (7th ed.) Citation

Claus, V., & Schwill, A. (1992). Encyclopaedia of information technology. Ellis Horwood.

Chicago Style (17th ed.) Citation

Claus, Volker, and Andreas Schwill. Encyclopaedia of Information Technology. New York: Ellis Horwood, 1992.

MLA (8th ed.) Citation

Claus, Volker, and Andreas Schwill. Encyclopaedia of Information Technology. Ellis Horwood, 1992.

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