APA (7th ed.) Citation

Hanson, O. (1985). Essentials of computer data files. Pitman.

Chicago Style (17th ed.) Citation

Hanson, Owen. Essentials of Computer Data Files. London ; Marshfield, Mass.: Pitman, 1985.

MLA (8th ed.) Citation

Hanson, Owen. Essentials of Computer Data Files. Pitman, 1985.