APA Edition Citation

Simpson A. (1991). World Information technology manual Vol. II system & Services. Elsevier.

Chicago Edition Citation

Simpson A. World Information Technology Manual Vol. II System & Services. London: Elsevier, 1991.

MLA Edition Citation

Simpson A. World Information Technology Manual Vol. II System & Services. Elsevier, 1991.

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