APA (7th ed.) Citation

Beech, G. (1981). Software secrets: Input, output and data storage techniques. Sigma Technical Pr..

Chicago Style (17th ed.) Citation

Beech, Graham. Software Secrets: Input, Output and Data Storage Techniques. Wilmslow, Cheshire: Sigma Technical Pr., 1981.

MLA (8th ed.) Citation

Beech, Graham. Software Secrets: Input, Output and Data Storage Techniques. Sigma Technical Pr., 1981.

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