Παραπομπή APA

Harrison, D. (1985). Data processing: :A first course. Galgotia.

Παραπομπή Chicago Style

Harrison, David. Data Processing: :A First Course. New Delhi: Galgotia, 1985.

Παραπομπή MLA

Harrison, David. Data Processing: :A First Course. Galgotia, 1985.