Provisional central product classification /
Department of International Economic and Social Affairs, Statistical Office of the United Nations.
- New York : United Nations, 1991.
- viii, 296 p. ; 28 cm.
- Statistical papers.Series M ; no. 77 .
Includes bibliographical references.
93105348
Commercial products--Classification.
310 / UNP
Includes bibliographical references.
93105348
Commercial products--Classification.
310 / UNP