APA (7th ed.) Citation

Lewis, J. P. (1969). An introduction to mathematics: For students of economics (2nd ed.). Macmillan.

Chicago Style (17th ed.) Citation

Lewis, J. Parry. An Introduction to Mathematics: For Students of Economics. 2nd ed. London: Macmillan, 1969.

MLA (9th ed.) Citation

Lewis, J. Parry. An Introduction to Mathematics: For Students of Economics. 2nd ed. Macmillan, 1969.