Folsom, R. H., Gordon, M. W., & Spanogle, J. A. (1989). 1989 documents to supplement international business transactions: A problem-oriented coursebook. West Pub.
Čikaški stil citiranja (17. izdanje)Folsom, Ralph H., Michael W. Gordon, i John A. Spanogle. 1989 Documents to Supplement International Business Transactions: A Problem-oriented Coursebook. St. Paul, MN: West Pub, 1989.
MLA način citiranja (9. izdanje)Folsom, Ralph H., et al. 1989 Documents to Supplement International Business Transactions: A Problem-oriented Coursebook. West Pub, 1989.
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