APA (7th ed.) Citation

Scanlan, G. P., Scanlan, G., & Ryan, C. (1985). An introduction to criminal law. Financial Training.

Chicago Style (17th ed.) Citation

Scanlan, Gary P., Gary Scanlan, and Christopher Ryan. An Introduction to Criminal Law. London: Financial Training, 1985.

MLA (8th ed.) Citation

Scanlan, Gary P., et al. An Introduction to Criminal Law. Financial Training, 1985.