APA Citation

Christopher, J. (2000). Return to earth. Oxford: Oxford Univ. Press.

Trích dẫn kiểu Chicago

Christopher, John. Return to Earth. Oxford: Oxford Univ. Press, 2000.

MLA Citation

Christopher, John. Return to Earth. Oxford: Oxford Univ. Press, 2000.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.