American English uses double-quotes, while British English uses single-quotes: "This is a quote." 'This is a quote.' Why do we use different quotation marks? When did this difference ...
Should one stick to American style of placing punctuation marks within quotes if one uses the American spelling?
According to Wikipedia, there are two ways to use punctation marks when it comes to quoting. Basically, we have the British style, where punctation marks that don't come from the quoted material "is ...