Dyfyniad APA

Walker, A. G. (1995). International trade procedures and management (4th edition.). Oxford; Boston: Butterworth-Heinemann.

Dyfyniad Arddull Chicago

Walker, A. G. International Trade Procedures and Management. 4th edition. Oxford; Boston: Butterworth-Heinemann, 1995.

Dyfyniad MLA

Walker, A. G. International Trade Procedures and Management. 4th edition. Oxford; Boston: Butterworth-Heinemann, 1995.

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