APA (7th ed.) Citation

Heath, D., Allum, D., & Dunckley, L. (1994). Introductory logic and formal methods. Alfred Waller Ltd.

Chicago Style (17th ed.) Citation

Heath, David, Derek Allum, and Lynne Dunckley. Introductory Logic and Formal Methods. Oxfordshire: Alfred Waller Ltd, 1994.

MLA (9th ed.) Citation

Heath, David, et al. Introductory Logic and Formal Methods. Alfred Waller Ltd, 1994.