Cita APA (7th ed.)

Urrutia Sánchez, E. (2013). 10 didactic activities for intermediate English classes. Universidad de la Salle.

Cita Chicago (17th ed.)

Urrutia Sánchez, Elena. 10 Didactic Activities for Intermediate English Classes. Bogotá: Universidad de la Salle, 2013.

Cita MLA (9th ed.)

Urrutia Sánchez, Elena. 10 Didactic Activities for Intermediate English Classes. Universidad de la Salle, 2013.