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Capitalize the first word of the title proper each sentence and all proper nouns found in the title propernarrative notes.
When transcribing a formal title proper, capitalize the first word and proper nouns.
Do not capitalize the first word of sub-titles (i.e., text that appears after a colon in the title proper) unless the word is a proper noun.
Capitalize the first word of each sentence found in narrative notes and proper nouns found in the notessupplied titles.
Capitalize the title of creative works (i.e., a formal title) when they are given as part of a supplied title.
Abbreviations, initialisms, and contractions
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Give date expressions in DMY format (e.g., 20 November 1989)
Use “to” when giving a date range in DMY format (e.g., 20 November 1989 to 7 January 1990)Give start date and end date in ISO 8601 YMD format (e.g., 1989-11-20)
Never use n.d. to indicate “no date.” RAD 1.4B5 provides guidance on formatting probable and uncertain dates:
Format | Usage |
|---|---|
[1867?] | probable date |
[ca. 1867] | approximate date |
[before 1867] | terminal date |
[after 5 Jan. 1867] | terminal date |
[1892 or 1893] | one year or the other |
[between 1915 and 1918] | use only for dates fewer than 20 years apart |
[197-] | decade certain |
[186-?] | probable decade |
[17–] | century certain |
[17–?] | probable century |
Give start date and end date in ISO 8601 YYYY-MM-DD format (e.g., 1989-11-20)
Use earliest and/or latest possible date when giving YYYY-MM-DD start date and end dates for probable or uncertain dates (e.g., 1892-01-01 start date and 1893-12-31 end date for [1892 or 1893] uncertain date expression)