APA (7th ed.) Citation

Holt, R. C., & Hume, J. N. P. (1984). Introduction to computer science using the TURING programming language.

Chicago Style (17th ed.) Citation

Holt, R. C., and J. N. P. Hume. Introduction to Computer Science Using the TURING Programming Language. 1984.

MLA (9th ed.) Citation

Holt, R. C., and J. N. P. Hume. Introduction to Computer Science Using the TURING Programming Language. 1984.

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