एपीए उद्धरण

Fridén, L. (1972). Instability in the international steel market: A study of import and export fluctuations. Stockholm: Beckmans.

शिकागो स्टाइल उद्धरण

Fridén, Lennart. Instability in the International Steel Market: A Study of Import and Export Fluctuations. Stockholm: Beckmans, 1972.

एमएलए उद्धरण

Fridén, Lennart. Instability in the International Steel Market: A Study of Import and Export Fluctuations. Stockholm: Beckmans, 1972.