Корично изображение Електронна книга
Описание на библ. документ: "May 2001"--Title page verso.
"LC/G.2121-P"--Title page verso.
"United Nations publication sales no. E.01. II. G.19"--Title page verso.
Физически характеристики: 1 online resource (205 pages) : illustrations.
Формат: Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.
Библиография: Includes bibliographical references (pages 181-201).
ISBN: 1417557249
9781417557240