APA (7th ed.) Citation

Blackburn, D., & Holister, G. (1987). G.K. Hall encyclopedia of modern technology. G.K. Hall.

Chicago Style (17th ed.) Citation

Blackburn, David, and Geoffrey Holister. G.K. Hall Encyclopedia of Modern Technology. Boston, MA: G.K. Hall, 1987.

MLA (9th ed.) Citation

Blackburn, David, and Geoffrey Holister. G.K. Hall Encyclopedia of Modern Technology. G.K. Hall, 1987.