Oxenfeldt, A. R. (1951). Industrial pricing and market practices. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Oxenfeldt, Alfred Richard. Industrial Pricing and Market Practices. New York: Prentice-Hall, 1951.
Lua MLA (9ú heag.)Oxenfeldt, Alfred Richard. Industrial Pricing and Market Practices. Prentice-Hall, 1951.
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