Cita APA

Clarke, A. C. (1997). The songs of distant Earth. Oxford: Oxford Univ. Press.

Chicago Style Citation

Clarke, Arthur C. The Songs of Distant Earth. Oxford: Oxford Univ. Press, 1997.

Cita MLA

Clarke, Arthur C. The Songs of Distant Earth. Oxford: Oxford Univ. Press, 1997.

Atenció: Aquestes cites poden no estar 100% correctes.