APA (7th ed.) Citation

Riley, D. D. (1987). Using Pascal: An introduction to computer science I. Boyd & Fraser.

Chicago Style (17th ed.) Citation

Riley, David D. Using Pascal: An Introduction to Computer Science I. Boston: Boyd & Fraser, 1987.

MLA (9th ed.) Citation

Riley, David D. Using Pascal: An Introduction to Computer Science I. Boyd & Fraser, 1987.

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