Cita APA (7a ed.)

O'Brien, D. P. (2004). Classical economists. Princeton University Press.

Cita Chicago Style (17a ed.)

O'Brien, D. P. Classical Economists. Princeton, N.J.: Princeton University Press, 2004.

Cita MLA (9a ed.)

O'Brien, D. P. Classical Economists. Princeton University Press, 2004.