APA (7th ed.) Citation
O'Connor, D., & Powell, B. (1980). Elementary Logic (1. ed.). Hodder and Stoughton.
Chicago Style (17th ed.) Citation
O'Connor, D.J, and Bettty Powell. Elementary Logic. 1. ed. London: Hodder and Stoughton, 1980.
MLA (9th ed.) Citation
O'Connor, D.J, and Bettty Powell. Elementary Logic. 1. ed. Hodder and Stoughton, 1980.
Warning: These citations may not always be 100% accurate.