Rules for writers, Tenth edition - Diana Hacker, Nancy Sommers 2021

Use a colon according to convention
The colon
Punctuation

SALUTATION IN A LETTER Dear Editor:

HOURS AND MINUTES 5:30 p.m.

PROPORTIONS The ratio of women to men was 2:1.

TITLE AND SUBTITLE The Glory of Hera: Greek Mythology and the Greek Family

BIBLIOGRAPHIC ENTRIES Boston: Bedford/St. Martin’s, 2021

CHAPTER AND VERSE IN SACRED TEXT Luke 2:14, Qur’an 67:3