Can I use parentheses at the ends of sentences instead of notes?
Only in rare cases does the Chicago Style use parentheses at the end of sentences. Only one of the cases would apply in your essays: if you are referring to the same source over and over again in your essay. In that case, your first note should be in the usual format, but afterwards in the same note there should be an additional sentence reading “Hereafter cited in text.” After that first number, use the page number only in parentheses at the ends of sentences. (In such cases, the punctuation changes, and should be: end of quotation without any final punctuation, then close quotation marks, then space, then open parentheses, then page number–just the number alone without p. or any other identifiers–then close parentheses, then the period, as follows: . . . aid of the party” (229). Note that as soon as you cite a different source, you must go back to the more usual practice of using notes.
