|
|
1993 |
|
- |
|
|
|
|
|
|
2001 |
|
- |
|
|
|
|
|
|
1985 |
|
- |
|
|
|
|
|
|
1989 |
|
- |
|
|
|
|
|
|
1993 |
|
$10.00 |
|
|
|
|
|
|
1984 |
|
- |
|
|
|
|
|
|
1993 |
|
- |
|
|
|
|
|
|
1991 |
|
$5.00 |
|
|
|
|
|
|
2001 |
|
- |
|
|
|
|
|
|
1996 |
|
$15.00 |
|
|
|
|
|
|
1989 |
|
- |
|
|
|
|
|
|
1988 |
|
$5.00 |
|
|
|
|
Interlocking Stabilised Soil Blocks, Appropriate earth technologies in Uganda |
|
2009 |
|
$10.00 |
|
|
|
|
|
|
2000 |
|
- |
|
|
|
|
|
|
2004 |
|
- |
|
|
|
|
|
|
1997 |
|
$15.00 |
|
|
|
|
|
|
2001 |
|
- |
|
|
|
|
|
|
1988 |
|
- |
|
|
|
|
|
|
1988 |
|
$7.00 |
|
|
|
|
|
|
1991 |
|
$10.00 |
|
|
|
|