APA (7th ed.) Citation

LEWIS, J. P. (1959). An introduction to mathematics: For students of economics. Macmillan.

Chicago Style (17th ed.) Citation

LEWIS, J. Parry. An Introduction to Mathematics: For Students of Economics. London: Macmillan, 1959.

MLA (9th ed.) Citation

LEWIS, J. Parry. An Introduction to Mathematics: For Students of Economics. Macmillan, 1959.