Cita APA (7a ed.)

Cenoz, J., & Valencia, J. F. (1994). Additive trilingualism: Evidence from the Basque Country. [s.n.].

Cita Chicago Style (17a ed.)

Cenoz, Jasone, y José F. Valencia. Additive Trilingualism: Evidence from the Basque Country. [S.l.]: [s.n.], 1994.

Cita MLA (9a ed.)

Cenoz, Jasone, y José F. Valencia. Additive Trilingualism: Evidence from the Basque Country. [s.n.], 1994.