Cita APA (7a ed.)

Sumner, S., & Silver, S. (1989). Real wages, employment and the Phillips curve. [s.n.].

Cita Chicago Style (17a ed.)

Sumner, Scott, y Stephen Silver. Real Wages, Employment and the Phillips Curve. [S.l.]: [s.n.], 1989.

Cita MLA (9a ed.)

Sumner, Scott, y Stephen Silver. Real Wages, Employment and the Phillips Curve. [s.n.], 1989.