APA-referens (7:e uppl.)

Ryans, C. C. (1983). International business reference sources: Developing a corporate library. LexingtonBooks.

Chicago-referens (17:e uppl.)

Ryans, Cynthia C. International Business Reference Sources: Developing a Corporate Library. Lexington, Mass.: LexingtonBooks, 1983.

MLA-referens (8:e uppl.)

Ryans, Cynthia C. International Business Reference Sources: Developing a Corporate Library. LexingtonBooks, 1983.

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