„National Trade Data Bank (NTDB)“

(USA) An electronic data base which contains international economic and export promotion information supplied by 15 U.S. governmental agencies.

“Exporting, Importing, and Countertrade: The International Flow of Products, Knowledge, and Finance” by George S. Tesar and R. Duane Ireland. John Wiley & Sons, Inc., 2006, pp. 155-162.