GOLDSMITH, H. R. (1980). Import/export Aguide To Growth, Profits, And Market Share Howard R. Goldsmith. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)GOLDSMITH, Howard R. Import/export Aguide To Growth, Profits, And Market Share Howard R. Goldsmith. Prentice-Hall, 1980.
Lua MLA (8ú heag.)GOLDSMITH, Howard R. Import/export Aguide To Growth, Profits, And Market Share Howard R. Goldsmith. Prentice-Hall, 1980.
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