APA način citiranja

Heller, H. R. International Trade: Theory and Empirical Evidence.

Čikaški stil citiranja

Heller, H. Robert. International Trade: Theory and Empirical Evidence. :.

MLA način citiranja

Heller, H. Robert. International Trade: Theory and Empirical Evidence.

Upozorenje: Ovi citati možda nisu uvijek 100% točni.