APA引文

kramer, r. L., darlin, m. Y., & root, f. R. International trade: Theory, policy, practice.

Chicago Style (17th ed.) Citation

kramer, roland L., maurice Y. darlin, and franklin R. root. International Trade: Theory, Policy, Practice.

MLA引文

kramer, roland L., et al. International Trade: Theory, Policy, Practice.

警告：這些引文格式不一定是100％准確.