APA ציטוט

Lewis, J. P. (1969). Introduction to mathematics: For students of economics/2e (2nd ed.). Macmillan & Co.

Chicago Edition Citation

Lewis, J. Parry. Introduction to Mathematics: For Students of Economics/2e. 2nd ed. London: Macmillan & Co, 1969.

ציטוט MLA

Lewis, J. Parry. Introduction to Mathematics: For Students of Economics/2e. 2nd ed. Macmillan & Co, 1969.