APA (7th ed.) Citation

Lewis, J. P. (1969). An introduction to mathematics for students of economics. Macmillan.

Chicago Style (17th ed.) Citation

Lewis, John Parry. An Introduction to Mathematics for Students of Economics. London: Macmillan, 1969.

MLA (9th ed.) Citation

Lewis, John Parry. An Introduction to Mathematics for Students of Economics. Macmillan, 1969.