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9 Italics, bold and underlining
9.1 Italics
Italic font is used for:
- emphasis, as sparingly as possible (note that when the body text is in italics, roman type should be used for emphasis);
- book and journal titles in all languages (titles of chapters and articles are not italicized); website names; titles of paintings and sculptures in all languages; plays, films, and radio and television programmes in all languages; and names of ships (prefixes such as SS or HMS are not italicized);
- mathematical variables, e.g. <correct-text>2<correct-text><correct-text-bold-italic>x<correct-text-bold-italic><correct-text> + 3<correct-text><correct-text-bold-italic>p<correct-text-bold-italic>;
- names of legal cases or judgments, e.g. <correct-text-bold-italic>State of Wyoming v. Jameson<correct-text-bold-italic>;
- the indication of genera, species and subspecies (see also 6.3.3 Scientific names); and
- some foreign words and phrases. See 6.4 Foreign languages for more information.
Note that only words italicized in the original text should be italicized within a direct quote.
9.2 Bold
Authors’ names may be in bold in reference lists and in the source notes under figures, tables and boxes. This is optional, provided it is consistent throughout the document. (See 12 Referencing and crediting sources). In the text, avoid bold unless there is a clear purpose, such as emphasis.
9.3 Underlining
Hyperlinked text should be underlined. The exception to this rule is URLs, from which an underline may be removed.