APA aipamena

Kohler, H. (1997). Economic systems and human welfare: A global survey. Cincinnati, Ohio: South-Western College.

Chicago Style aipamena

Kohler, Heinz. Economic Systems and Human Welfare: A Global Survey. Cincinnati, Ohio: South-Western College, 1997.

MLA aipamena

Kohler, Heinz. Economic Systems and Human Welfare: A Global Survey. Cincinnati, Ohio: South-Western College, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.