Format:
VI, 50 S.
,
graph. Darst.
ISBN:
9211043468
Series Statement:
UNCTC current studies 20
Note:
July 1990
,
United Nations publication sales no. E.90.II.A.16"--Cover p. [4]
,
Includes bibliographical references (p. 41-42)
Language:
English
Keywords:
Amtsdruckschrift
;
Graue Literatur