APA (7th ed.) Citation

Keller, G., & Stinnesbeck, W. (2003). Multiple impacts across the Cretaceous-Tertiary boundary. Earth science reviews, 62(3/4), .

Chicago Style (17th ed.) Citation

Keller, Gerta, and Wolfgang Stinnesbeck. "Multiple Impacts Across the Cretaceous-Tertiary Boundary." Earth Science Reviews 62, no. 3/4 (2003).

MLA (9th ed.) Citation

Keller, Gerta, and Wolfgang Stinnesbeck. "Multiple Impacts Across the Cretaceous-Tertiary Boundary." Earth Science Reviews, vol. 62, no. 3/4, 2003.