APA (7th ed.) Zitazioa
SWINDELL, R., & THOMPSON, J. (1996). AN INTERNATIONAL PERSPECTIVE ON THE UNIVERSITY OF THE THIRD AGE.
Chicago Style (17th ed.) Zitazioa
SWINDELL, R., eta J. THOMPSON. AN INTERNATIONAL PERSPECTIVE ON THE UNIVERSITY OF THE THIRD AGE. 1996.
MLA (9th ed.) Zitazioa
SWINDELL, R., eta J. THOMPSON. AN INTERNATIONAL PERSPECTIVE ON THE UNIVERSITY OF THE THIRD AGE. 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.