Cita APA

Sagan, C., & Agel, p. J. (1975). The cosmic connection. Coronet Books.

Chicago Style (17th ed.) Citation

Sagan, Carl, i prod. Jerome Agel. The Cosmic Connection. Coronet Books, 1975.

Cita MLA

Sagan, Carl, i prod. Jerome Agel. The Cosmic Connection. Coronet Books, 1975.

Atenció: Aquestes cites poden no estar 100% correctes.