A guide to direction of trade statistics / 
Prepared by the Real sector Division, IMF Statistics Department John B. McLenaghan. 
 - Washington, DC :  International Monetary Fund,  1993. 
 - vii, 25 p. 
<br/><br/><label>ISBN: </label>1-55775-334-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Վիճակագրություն