format: paperback pages: 134
language: English
ISBN:
9231040871 (9789231040870)
publisher: UNESCO
format: hardcover
language: English
ISBN:
9231032615 (9789231032615)
publisher: Bernan Press(PA)
format: paperback pages: 86
language: English
ISBN:
9231025090 (9789231025099)
publisher: UNESCO
publish date: January 1st 2004
format: hardcover pages: 200
language: English
ISBN:
9231039423 (9789231039423)