APA (7th ed.) Citation

Killough, H. B., & Killough, L. W. (1948). Economics of international trade (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Killough, Hugh B., and Lucy W. Killough. Economics of International Trade. 2nd ed. New York: McGraw-Hill, 1948.

MLA (9th ed.) Citation

Killough, Hugh B., and Lucy W. Killough. Economics of International Trade. 2nd ed. McGraw-Hill, 1948.