Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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