“When beginning to quote a source from somewhere in the sentence other than the first word, as a general rule, introduce the quote with “that”. For example, Paul explained that “your bodies are temples of the Holy Spirit” (1 Cor 6:19b).
“When beginning to quote a source from the beginning of the quoted sentence, then introduce the quote with a comma and capitalize the first word of the quote. Paul asked, “Do you not know that your bodies are temples of the Holy Spirit, who is in you, whom you have received from God?” (1 Cor 6:19).”
25.2.1 Run-in Quotations
When quoting a passage of less than five lines, enclose the exact words quoted in double quotation marks. There are several ways to integrate a quotation into the flow of your text; see 7.5. You may introduce it with the name of the author accompanied by a term such as notes, claims, argues, or according to. (Note that these terms are usually in the present tense, rather than noted, claimed, and so forth, but some disciplines follow different practices.) In this case, put a comma before the quotation.
Ricoeur writes, “The boundary between plot and argument is no easier to trace.”
As Ricoeur notes, “The boundary between plot and argument is no easier to trace.”
If you weave a quotation more tightly into the syntax of your sentence, such as with the word that, do not put a comma before it.
Ricoeur warns us that “the boundary between plot and argument is no easier to trace.”
If you put the attributing phrase in the middle or at the end of a quotation, set it off with a pair of commas when it occurs in the middle or with a single comma when it occurs at the end.
“The boundary between plot and argument,” says Ricoeur, “is no easier to trace.”
“The boundary between plot and argument is no easier to trace,” says Ricoeur.
For the use of commas, periods, and other punctuation marks relative to quotations, see 21.12.2 and 25.3.1; for permissible changes to capitalization and other elements, see 25.3.1.
Turabian, Kate L.. A Manual for Writers of Research Papers, Theses, and Dissertations, Ninth Edition (Chicago Guides to Writing, Editing, and Publishing) (pp. 359-360). University of Chicago Press. Kindle Edition.
