APA引文

Killough, H. B., & Killough, L. W. (1960). International economics. Van Nostrand.

Chicago Style (17th ed.) Citation

Killough, Hugh B., and Lucy W. Killough. International Economics. Princeton, N.J.: Van Nostrand, 1960.

MLA引文

Killough, Hugh B., and Lucy W. Killough. International Economics. Van Nostrand, 1960.