Ohcanbohtosat - "History of Technology (book series)"
Ozuin - "History of Technology (book series)" - eai gávdnon bohtosat.
Sáhtát oažžut lasi bohtosiid go hábmet iežat ohcama.
- Sáhtát oažžut eanet bohtosiid go sihkut aisttonmearkkaid: History of Technology (book series).