एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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