12 October 2012
- 12:5212:52, 12 October 2012 diff hist +767 Principles of appropriate technology →In practice Tag: n
- 12:4212:42, 12 October 2012 diff hist +479 Principles of appropriate technology No edit summary Tag: n
- 06:4506:45, 12 October 2012 diff hist +62 Materials No edit summary Tag: n
- 06:4306:43, 12 October 2012 diff hist +43 Green living →See also Tag: n