publisher: Practical Action
publish date: December 1st 1991
format: paperback pages: 64
language: English
ISBN:
1853391123 (9781853391125)
ISBN:
0140803602 (9780140803600)
publisher: Practical Action
publish date: September 1st 1990
format: paperback pages: 64
language: English
ISBN:
185339078X (9781853390784)
ISBN:
0904647072 (9780904647075)
publisher: Sage Publications (CA) publish date: May 30th 2008
format: hardcover pages: 192
language: English
ISBN:
1412948215 (9781412948210)