Cita APA (7a ed.)

Ek, J. A. v. (1987). Objetives for foreign language learning. Council of Europe. Council for Cultural Co-operation.

Cita Chicago Style (17a ed.)

Ek, Jan A. van. Objetives for Foreign Language Learning. Strasbourg: Council of Europe. Council for Cultural Co-operation, 1987.

Cita MLA (8a ed.)

Ek, Jan A. van. Objetives for Foreign Language Learning. Council of Europe. Council for Cultural Co-operation, 1987.