Cita APA (7a ed.)

Ortega, P. (1991). A new functional form for estimating Lorenz curves. [s.n.].

Cita Chicago Style (17a ed.)

Ortega, P. A New Functional Form for Estimating Lorenz Curves. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Ortega, P. A New Functional Form for Estimating Lorenz Curves. [s.n.], 1991.