Cita APA (7th ed.)

Sen, S. (1972). An Introduction to Economic Theory (26th.). Bookland Pvt. Ltd.

Cita Chicago (17th ed.)

Sen, S. An Introduction to Economic Theory. 26th. NULL: Bookland Pvt. Ltd, 1972.

Cita MLA (9th ed.)

Sen, S. An Introduction to Economic Theory. 26th. Bookland Pvt. Ltd, 1972.