So many rules! But the fact that someone else wrote these down means that you don’t have to. All you have to say is, “I’m following XX style on this, and will note only the exceptions.”
Direct
The National Library of Medicine style guide (aka Vancouver style): http://www.ncbi.nlm.nih.gov/books/NBK7256/
The Chicago Manual of Style: http://chicagomanualofstyle.org/home.html
And Q&A: http://www.chicagomanualofstyle.org/qanda/latest.html
American Psychological Association (APA) Publication Manual: http://www.apastyle.org/
And Blog: http://blog.apastyle.org/apastyle/
Council of Science Editors, Scientific Style and Format (aka SSF8): http://www.scientificstyleandformat.org/Home.html
From the publishers of The Chicago Manual of Style
European Commission language style guides and translation resources:
- Translation and drafting resources: https://ec.europa.eu/info/resources-partners/translation-and-drafting-resources_en
- Into Croatian
- Into English
- Into other EU languages
Courtesy of the Croatian Association of Audiovisual Translators (CAAT), guidelines for subtitling in Croatian (guidelines are in Croatian): http://dhap.hr/Content/documents/SmjerniceZaKvalitetnoTitlanje.pdf
Compilations
The Conscious Style Guide: http://consciousstyleguide.com/ — a compendium of links to articles and resources for using “kind, compassionate, mindful, empowering, respectful and inclusive” language. Awesome resource!
ATA Science and Technology Division Website, list of technical style guides: http://www.ata-divisions.org/S_TD/tech_writing.html
For links to European regulatory sites, see this page.