APA aipamena

Richardson, J. H. Economic and finanical aspects of social security: An international survey.

Chicago Style aipamena

Richardson, J. Henry. Economic and Finanical Aspects of Social Security: An International Survey.

MLA aipamena

Richardson, J. Henry. Economic and Finanical Aspects of Social Security: An International Survey.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.