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Here are entered works on organizations that provide information services. Works on sources of information in general, not limited to a specific format or medium, including works that list organizations other than information services as sources of information, are entered under Information resources. Works on sources of information in a specific format or medium are entered under the heading for the format or medium
--subdivision Information services under names of countries, cities, etc., individual persons, and corporate bodies, and under classes of persons, ethnic groups, military services, and topical headings
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