Cox, H. (2000). Aging (13th ed.). Dushkin/McGraw-Hill.
Chicago Style aipamenaCox, Harold. Aging. 13th ed. Guilford, Conn. :: Dushkin/McGraw-Hill, 2000.
MLA aipamenaCox, Harold. Aging. 13th ed. Dushkin/McGraw-Hill, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.