Gil Quesada, R. (1979). The practice, transforming activity.
Chicago Style aipamenaGil Quesada, Rodolfo. The Practice, Transforming Activity. 1979.
MLA aipamenaGil Quesada, Rodolfo. The Practice, Transforming Activity. 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.