MLA

Käufl, H.U, et al. Deep Impact As a World Observatory Event: Synergies In Space, Time, and Wavelength. Springer Berlin Heidelberg, 2009.

APA

Käufl, H., Kaufl, H., Leibundgut, B., & Sterken, C., & Sterken, C. (2009). Deep Impact as a World Observatory Event: Synergies in Space, Time, and Wavelength. Springer Berlin Heidelberg.

Chicago

Käufl, H.U, H.U Kaufl, Bruno Leibundgut, C Sterken, and Christiaan Sterken. Deep Impact As a World Observatory Event: Synergies In Space, Time, and Wavelength. : Springer Berlin Heidelberg, 2009.