APA (7th ed.) Citation

Bullen, K. E. (1951). An introduction to the theory of mechanics (2nd ed.). Science Press.

Chicago Style (17th ed.) Citation

Bullen, K. E. An Introduction to the Theory of Mechanics. 2nd ed. Sydney: Science Press, 1951.

MLA (8th ed.) Citation

Bullen, K. E. An Introduction to the Theory of Mechanics. 2nd ed. Science Press, 1951.