- Separating a title from a subtitle
When citing the name of a book which has both a title and a subtitle, separate the two with a colon. Do this even though no colon may appear on the cover or the title page of the book itself.
Human Towers: A Catalan Tradition - Writing ratios
Use colons to write ratios.
Among students in the programme, women outnumbered men by more than 2:1. However, in more formal contexts write out ratios in words.
Among students in the programme, women outnumbered men by more than two to one.