Assertion: quotation mark | /r/AtLocation | display type
Facets:
value: to indicate other article
type: PURPOSE
value: to indicate book titles
type: PURPOSE
Source sentences:
text: Editors also enforced another house style rule that may not be widely used elsewhere: When quotation marks appeared in display type (primarily titles, subheads, and pull quotes) to indicate other article or book titles, words used as words, or quotations, we would use single quotation marks rather than double ones.