Armstrong, W. (1980). Better tools for the job: Specifications for hand tools and equipment. Intermidiate Technology Publications.
Chicago Style aipamenaArmstrong, William. Better Tools for the Job: Specifications for Hand Tools and Equipment. London: Intermidiate Technology Publications, 1980.
MLA aipamenaArmstrong, William. Better Tools for the Job: Specifications for Hand Tools and Equipment. Intermidiate Technology Publications, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.