I Relationships in the Organization of Knowledge: Theoretical Background.- 1 Relationships in the Organization of Knowledge: An Overview.- 2 Bibliographic Relationships.- 3 Thesaural Relationships.- 4 Standards for Relationships between Subject Indexing Terms.- 5 Relationships in Multilingual Thesauri.- 6 Relationships among Knowledge Structures: Vocabulary Integration within a Subject Domain.- 7 Relationships in Classificatory Structure and Meaning.- 8 Relevance Relationships.- II Relationships in the Organization of Knowledge: Systems.- 9 Relationships in Library of Congress Subject Headings.- 10 The Art and Architecture Thesaurus: Controlling Relationships through Rules and Structure.- 11 Relationships in Medical Subject Headings (MeSH).- 12 Lateral Relationships in Multicultural, Multilingual Databases in the Spiritual and Religious Domains: The OM Information Service.- 13 Relationships in Ranganathan’s Colon Classification.- 14 Relationships in the Dewey Decimal Classification System.