Cita APA (7a ed.)

Cal, V. (1979). The portuguese industry and the common market. Confedereçao Geral dos Tralbalhadores Portugueses Intersindical Nacional.

Cita Chicago Style (17a ed.)

Cal, Vasco. The Portuguese Industry and the Common Market. Lisboa: Confedereçao Geral dos Tralbalhadores Portugueses Intersindical Nacional, 1979.

Cita MLA (9a ed.)

Cal, Vasco. The Portuguese Industry and the Common Market. Confedereçao Geral dos Tralbalhadores Portugueses Intersindical Nacional, 1979.