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GTZ
Animal Traction
Animal Power
Animal Traction
Animal Power Milling
Animal Traction Harness/Implements

Bicycle Reference Manual

ITDG
Aerial ropeway in Nepal 288k
Gravity ropeways 1.1Mb
Bicycles 522k
Bicycle trailers 647k
Dry-stone causeways 202k
Plywood boat building in South India 390k

VITA
Auto Vehicle Maintenance - ( fr de it po es )