Fridén, L. (1972). Instability in the international steel market: A study of import and export fluctuations. Stockholm: Beckmans.
Dyfyniad Arddull ChicagoFridén, Lennart. Instability in the International Steel Market: A Study of Import and Export Fluctuations. Stockholm: Beckmans, 1972.
Dyfyniad MLAFridén, Lennart. Instability in the International Steel Market: A Study of Import and Export Fluctuations. Stockholm: Beckmans, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.