APA (7th ed.) Zitazioa
BALL, R. (1990). PUBLIC-PRIVATE SOLUTION TO PROTECTION AGAINST THE COST OF LONG-TERM CARE.
Chicago Style (17th ed.) Zitazioa
BALL, R.M. PUBLIC-PRIVATE SOLUTION TO PROTECTION AGAINST THE COST OF LONG-TERM CARE. 1990.
MLA (9th ed.) Zitazioa
BALL, R.M. PUBLIC-PRIVATE SOLUTION TO PROTECTION AGAINST THE COST OF LONG-TERM CARE. 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.