APA引文

Asimov, I. (2016). Foundation and empire (NA.). Harper Voyager.

Chicago Style (17th ed.) Citation

Asimov, Isaac. Foundation and Empire. NA. London: Harper Voyager, 2016.

MLA引文

Asimov, Isaac. Foundation and Empire. NA. Harper Voyager, 2016.

警告：這些引文格式不一定是100％准確.