Ryans, C. C. (1983). International business reference sources: Developing a corporate library. LexingtonBooks.
Citace podle Chicago (17th ed.)Ryans, Cynthia C. International Business Reference Sources: Developing a Corporate Library. Lexington, Mass.: LexingtonBooks, 1983.
Citace podle MLA (8th ed.)Ryans, Cynthia C. International Business Reference Sources: Developing a Corporate Library. LexingtonBooks, 1983.
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