APA (7th ed.) Citation

Sagan, C., Muntaner, M., & Moya Tasis, M. d. M. Cosmos.

Chicago Style (17th ed.) Citation

Sagan, Carl, Miquel Muntaner, and María del Mar Moya Tasis. Cosmos. Barcelona.

MLA (9th ed.) Citation

Sagan, Carl, et al. Cosmos.

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