APA (7th ed.) Citation

Sagan, C. (2001). Contact (ed. especial.). Planeta.

Chicago Style (17th ed.) Citation

Sagan, Carl. Contact. ed. especial. España: Planeta, 2001.

MLA (9th ed.) Citation

Sagan, Carl. Contact. ed. especial. Planeta, 2001.

Warning: These citations may not always be 100% accurate.