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MLA

Vollrath, Thomas L, et al. "Diagnostic Indexes of U.s. Bilateral Trade." , p.. Print

APA

Vollrath, T. L, United States, U. States, Department of Agriculture, D. of Agriculture, & Economic Research Service, E. Research Service. (1992). Diagnostic indexes of U.S. bilateral trade.

Chicago

Vollrath, Thomas L., United States, Department of Agriculture, and Economic Research Service. "Diagnostic indexes of U.S. bilateral trade" (1992): p..