Gaya APA

Schilling, G., Lindberg, I, C, L. (2009). Eyes on the skies: 400 years of telescopic discovery . Weinheim: .

Gaya MLA

Schilling, Govert., Lindberg, I., Christensen,, Lars. "Eyes on the skies: 400 years of telescopic discovery". Weinheim: , 2009. .