Cita APA (7a ed.)

Martner, G. D. Producers - exporters, asociations of developing countries. s.e.

Cita Chicago Style (17a ed.)

Martner, Gonzalo Daniel. Producers - Exporters, Asociations of Developing Countries. s.l: s.e.

Cita MLA (9a ed.)

Martner, Gonzalo Daniel. Producers - Exporters, Asociations of Developing Countries. s.e.