Jeanbourquin, Willy,
Le prix de revient dans l'industrie horlogère /
Willy Jeanbourquin.
- Genève : Éditions Radar et Générales, 1955.
- 181 pages ; 21 cm
Clock and watch industry--Accounting.
Clock and watch making--Accounting.
Clock and watch making--Economic aspects.
Clocks and watches--Prices.
Cost accounting accounting costs Economics Timekeeper (general) Switzerland