Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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