Cita APA

Villar Posada, F., & Celdrán, M. (2013). Learning in later life: Participation in formal, non-formal and informal activities in a nationally representative Spanish sample.

Citación estilo Chicago

Villar Posada, Feliciano, y Montserrat Celdrán. Learning in Later Life: Participation in Formal, Non-formal and Informal Activities in a Nationally Representative Spanish Sample. 2013.

Cita MLA

Villar Posada, Feliciano, y Montserrat Celdrán. Learning in Later Life: Participation in Formal, Non-formal and Informal Activities in a Nationally Representative Spanish Sample. 2013.