Smith, P. (1986). How to make a foot-operated workshop drilling machine: Step by step instruction on how to build a machine capable of drilling holes in wood or metal, up to 12mm diameter. Intermediate Technology Publications.
Chicago-Zitierstil (17. Ausg.)Smith, Paul. How to Make a Foot-operated Workshop Drilling Machine: Step by Step Instruction on How to Build a Machine Capable of Drilling Holes in Wood or Metal, Up to 12mm Diameter. London: Intermediate Technology Publications, 1986.
MLA-Zitierstil (9. Ausg.)Smith, Paul. How to Make a Foot-operated Workshop Drilling Machine: Step by Step Instruction on How to Build a Machine Capable of Drilling Holes in Wood or Metal, Up to 12mm Diameter. Intermediate Technology Publications, 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.