Variables All variables Standard variables Date variables accessed container event-date issued original-date submitted Name variables author collection-editor composer container-author director editor editorial-director illustrator interviewer original-author recipient reviewed-author translator Number variables chapter-number collection-number edition issue number number-of-pages number-of-volumes volume String variables abstract annote archive archive_location archive-place authority call-number citation-label citation-number collection-title container-title container-title-short dimensions DOI event event-place first-reference-note-number genre ISBN ISSN jurisdiction keyword locator medium note original-publisher original-publisher-place original-title page page-first PMID PMCID publisher publisher-place references reviewed-title scale section source status title title-short URL version year-suffix