APA (7th ed.) Citation

Robinson, O. F., Fergus, T. D., & Gordon, W. M. (1985). An introduction to European legal history. Professional Books Limited.

Chicago Style (17th ed.) Citation

Robinson, O. F., T. D. Fergus, and W. M. Gordon. An Introduction to European Legal History. Abingdon, Oxon.: Professional Books Limited, 1985.

MLA (9th ed.) Citation

Robinson, O. F., et al. An Introduction to European Legal History. Professional Books Limited, 1985.