Description
Item Description:United Nations publication. Sales no.: E.71.II.H.9-E/F/5.71.II.H.10.
At head of title: Department of Economic and Social Affairs.
The papers in v. 2 are presented in the language in which they were submitted, English, French, or Spanish, shortened to provide basic data only.
Physical Description:2 v. : illus. ; 29 cm.
Bibliography:Includes bibliographical references.