APA引文

FRIEDRICH, K. (1974). International Economics Concepts And Issues Klaus Friedrich. McGraw-Hill.

Chicago Style (17th ed.) Citation

FRIEDRICH, Klaus. International Economics Concepts And Issues Klaus Friedrich. McGraw-Hill, 1974.

MLA引文

FRIEDRICH, Klaus. International Economics Concepts And Issues Klaus Friedrich. McGraw-Hill, 1974.

警告：這些引文格式不一定是100％准確.