APA (7th ed.) Citation

Beakley, G. C., & Leach, H. W. (1969). The slide rule and its use in problem solving (2nd ed.). Macmillan.

Chicago Style (17th ed.) Citation

Beakley, George C., and H. W. Leach. The Slide Rule and Its Use in Problem Solving. 2nd ed. London: Macmillan, 1969.

MLA (9th ed.) Citation

Beakley, George C., and H. W. Leach. The Slide Rule and Its Use in Problem Solving. 2nd ed. Macmillan, 1969.