APA aipamena

HALM, G. N. Economic Systems: A comparative analysis. Vakils, Feffer and Simons Private Ltd.

Chicago Style aipamena

HALM, George N. Economic Systems: A Comparative Analysis. Vakils, Feffer and Simons Private Ltd.

MLA aipamena

HALM, George N. Economic Systems: A Comparative Analysis. Vakils, Feffer and Simons Private Ltd.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.