Cita APA (7th ed.)

Jones, L. (1984). Ideas: Speaking and listening activities for upper-intermediate students. Teacher's book (1a. ed.). Cambridge University.

Cita Chicago (17th ed.)

Jones, Leo. Ideas: Speaking and Listening Activities for Upper-intermediate Students. Teacher's Book. 1a. ed. Cambridge: Cambridge University, 1984.

Cita MLA (9th ed.)

Jones, Leo. Ideas: Speaking and Listening Activities for Upper-intermediate Students. Teacher's Book. 1a. ed. Cambridge University, 1984.