APA (7th ed.) Citation

Freund, A., Eggert, G., Kutzke, H., & Barbier, B. On the Occurrence of Magnesium Phosphates on Ivory.

Chicago Style (17th ed.) Citation

Freund, Anke, Gerhard Eggert, Hartmut Kutzke, and Bruno Barbier. On the Occurrence of Magnesium Phosphates on Ivory.

MLA (9th ed.) Citation

Freund, Anke, et al. On the Occurrence of Magnesium Phosphates on Ivory.

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