Cita APA (7a ed.)

Day, R. H., & Cigno, A. (1978). Modelling economic change: The recursive programming approach. North-Holland Pub.

Cita Chicago Style (17a ed.)

Day, Richard H., y Alessandro Cigno. Modelling Economic Change: The Recursive Programming Approach. Amsterdam: North-Holland Pub, 1978.

Cita MLA (9a ed.)

Day, Richard H., y Alessandro Cigno. Modelling Economic Change: The Recursive Programming Approach. North-Holland Pub, 1978.