From The Chicago Manual of Style  (13th ed.):
In a series consisting of three or more elements, the elements are separated by commas. When a conjunction joins the last two elements in a series, a comma is used before the conjunction.
*Attending the conference were Farmer, Johnson, and Kendrick.
The owner, the agent, and the tenant were having an acrimonious discussion.*
From The Chicago Manual of Style  (13th ed.):
Periods should be placed within the quotation marks except when single quotation marks are used to set off special terms.
By convention in works of philosophy and theology, terms having special philosophical or theological meaning are often enclosed in single quotation marks. Following punctuation is placed outside the quotation marks.
He had not defined the term ‘categorical imperative’.
The exclamation point should be placed inside the quotation marks, parentheses, or brackets when it is part of the quoted or parenthetical matter; otherwise, it should be place outside.
Her husband replied?calmly?“It is no concern of mine”!
The question mark should be placed inside the quotation marks, parentheses, or brackets only when it is part of the quoted or parenthetical matter.
Why was Farragut trembling when he said, “I’m here to open an inquiry”?
The semicolon should be placed outside quotation marks or parentheses.
- Curtis assumed that everyone in the room had read “Mr. Prokharchin”; he alluded to it several times during the discussion.*