Europe and North America ... Sources of statistics for market research ... / 
Kapferer, Clodwig.
Paris :  O.E.C.D., 
1961-1964.
Vol. 1. Radio sets. Vol. 2. Footwear. Vol. 3. General statistics. Vol. 4. Household appliances. Vol. 5. Machine tools. Vol. 6. Pharmaceuticals.