A manual for writers of research papers, theses, and dissertations, 7th edition - Kate L. Turabian 2007

The bible and other sacred works - Jewish bible/old testament
Abbreviations
Part III. Style 20 spelling

When you refer in text to whole chapters or books of the Bible or the Apocrypha, spell out the names of the books, but do not italicize them.

Jeremiah 42—44 records the flight of the Jews to Egypt.

The Revelation of St. John the Divine, known as “Revelation,” closes the New Testament.

When you cite biblical passages by verse (see 17.5.2 and 19.5.2), abbreviate the names of the books, using arabic numerals if they are numbered (1 Kings). Also use arabic numerals for chapter and verse numbers, with a colon between them. Since different versions of the scriptures use different names and numbers for books, identify the version you are citing. Depending on the context, you may either spell out the name of the version, at least on first occurrence, or use abbreviations (see 24.6.4), without preceding or internal punctuation.

1 Song of Sol. 2:1—5 NRSV

Ruth 3:14 NAB

The following sections list both traditional and shorter abbreviations for the books of the Bible, arranged in alphabetical order. If you are unsure which form of abbreviation is appropriate, consult your instructor. Where no abbreviation is given, use the full form.

24.6.1 Jewish bible/old testament

Note that the abbreviation for Old Testament is OT.