Lewis, J. P. (1965). An introduction to mathematics for student of economics. Macmillan.
Cita Chicago (17th ed.)Lewis, J. Parry. An Introduction to Mathematics for Student of Economics. London: Macmillan, 1965.
Cita MLA (9th ed.)Lewis, J. Parry. An Introduction to Mathematics for Student of Economics. Macmillan, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.