APA (7th ed.) Citation

Thomann, R. S., & Conkling, E. C. (1967). Geography of international trade. Prentice-Hall.

Chicago Style (17th ed.) Citation

Thomann, Richard S., and Edgar C. Conkling. Geography of International Trade. Englewood Cliffs, N.J: Prentice-Hall, 1967.

MLA (9th ed.) Citation

Thomann, Richard S., and Edgar C. Conkling. Geography of International Trade. Prentice-Hall, 1967.