APA (7. basım) Alıntı

Asimov, I. (2016). Prelude to foundation. Harper Collins.

Chicago Style (17. basım) Atıf

Asimov, Isaac. Prelude to Foundation. London: Harper Collins, 2016.

MLA (9th ed.) Atıf

Asimov, Isaac. Prelude to Foundation. Harper Collins, 2016.