APA (7th ed.) Citation

Keller, G. (1993). Planktic foraminifera across the Cretaceous-Tertiary transition in the Antarctic Ocean. PANGAEA.

Chicago Style (17th ed.) Citation

Keller, Gerta. Planktic Foraminifera Across the Cretaceous-Tertiary Transition in the Antarctic Ocean. PANGAEA, 1993.

MLA (9th ed.) Citation

Keller, Gerta. Planktic Foraminifera Across the Cretaceous-Tertiary Transition in the Antarctic Ocean. PANGAEA, 1993.

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