Παραπομπή APA
(1983). The directory of directories 1983: An annotated guide to business and industrial directories, professional and scientific rosters and other list and guides of all kinds (Second edition.). Detroit: Information Enterprices.
Παραπομπή Chicago StyleThe Directory of Directories 1983: An Annotated Guide to Business and Industrial Directories, Professional and Scientific Rosters and Other List and Guides of All Kinds. Second edition. Detroit: Information Enterprices, 1983.
Παραπομπή MLAThe Directory of Directories 1983: An Annotated Guide to Business and Industrial Directories, Professional and Scientific Rosters and Other List and Guides of All Kinds. Second edition. Detroit: Information Enterprices, 1983.
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