When a quote with citation ends a sentence, the period should go after the citation because the citation belongs to that sentence. Example: In “Synthetic Biology–Putting Engineering into Biology,” ...

Use double quotation marks (" ") to enclose phrases or entire sentences that were taken word for word from someone else. Quotation marks are not needed for paraphrasing. Example: The dog he brings on ...

A few years ago while copy editing an article, I was shocked to see something like this: “I lecture my sales staff about what I call ‘me syndrome,’” Jones said. What shocked me was the punctuation.