1. International standard industrial classification <of> all economic activities
المؤلف: Department of international economic and social affairs statistical office of the united nations
المکتبة: كتابخانه مركزي و مركز اطلاع رساني دانشگاه شاهد (طهران)
موضوع: Statistics,Economic- classification
رده :
WA
,
900
,
I61
,
1990
