APA-viite

Bytheway, A., & Edwards, C. (1991). Essence of infromation systems. Prentice-Hall of India Private Limited.

Chicago-tyylinen lähdeviittaus

Bytheway, Andy, ja Chris Edwards. Essence of Infromation Systems. New Delhi: Prentice-Hall of India Private Limited, 1991.

MLA-viite

Bytheway, Andy, ja Chris Edwards. Essence of Infromation Systems. Prentice-Hall of India Private Limited, 1991.