APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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