Upon downloading Zotero includes the following 10 styles.

  *  American Political Science Association
  *  American Psychological Association
  *  American Sociological Association (Author-Date)
  *  Chicago Manual of Style (Author-Date format)
  *  Chicago Manual of Style (Full Note with Bibliography)
  *  Chicago Manual of Style (Note with Bibliography)
  *  Chicago Manual of Style (Note without Bibliography)
  *  Harvard Reference format 1 (Author-Date)
  *  IEEE
  *  Modern Humanities Research Association (Note with Bibliography)
  *  Modern Humanities Research Association (Note without Bibliography)
  *  Modern Language Association
  *  National Library of Medicine
  *  Nature Journal
 
Users can download the following additional styles from our [[/styles|style repository]]. 

  *  American Chemical Society
  *  American Geophysical Union general format
  *  American Medical Association
  *  American Psychological Association
  *  Analytica Chimica Acta
  *  Analytical Chemistry
  *  Annals of the Association of American Geographers
  *  Antonie van Leeuwenhoek Journal
  *  Art History Journal
  *  Bioinformatics Journal
  *  Bluebook Law Review
  *  Cell Journal
  *  Centarus
  *  Council of Science Editors
  *  FEMS based Journal
  *  Genes and Development Journal
  *  Genome Biology Journal
  *  Harvard Reference format 2
  *  Harvard Reference format 3
  *  History and Theory Journal
  *  History Journal
  *  INTER. Romanian Institute for Inter-Orthodox, Inter-Confessional and Inter-Religious   Studies
  *  ISO-690 (Author-Date format) 
  *  Journal of Bacteriology
  *  Journal of Biological Chemistry
  *  Metabolic Engineering Journal
  *  Meteoritics & Planetary Science Journal
  *  Neuroreport
  *  Nucleic Acids Research Journal
  *  Open University A251 format
  *  Open University Harvard Reference
  *  Oxford Art Journal
  *  PNAS Journal
  *  Public Library of Science Journal
  *  RNA Journal
  *  Romanian Humanities
  *  Royal Society of Chemistry general format
  *  Science journal
  *  Urban Studies
  *  Water Research
  *  Yeast Journal

Because Zotero relies on the flexible and open-source Citation Style Language (CSL) to generate its bibliographic output, it can easily support any imaginable publication style.