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- 12:52, 12 October 2012 Difference History +767 Principles of appropriate technology →In practice Tags: ANON EDIT. To be patrolled. n
- 12:42, 12 October 2012 Difference History +479 Principles of appropriate technology Tags: ANON EDIT. To be patrolled. n
- 06:45, 12 October 2012 Difference History +62 Materials Tags: ANON EDIT. To be patrolled. n
- 06:43, 12 October 2012 Difference History +43 Green living →See also Tags: ANON EDIT. To be patrolled. n