APA (7th ed.) Citation

Papantōnopulos, E. (2007). The invisible universe: Dark matter and dark energy. Springer.

Chicago Style (17th ed.) Citation

Papantōnopulos, Eleutherios. The Invisible Universe: Dark Matter and Dark Energy. Berlin [u.a.]: Springer, 2007.

MLA (9th ed.) Citation

Papantōnopulos, Eleutherios. The Invisible Universe: Dark Matter and Dark Energy. Springer, 2007.

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