APA (7th ed.) Citation

Hubberten, H., Morche, W., Westall, F., Fütterer, D. K., & Keller, J. (1991). Chemistry of volcanic ash layers from the southern Atlantic. PANGAEA.

Chicago Style (17th ed.) Citation

Hubberten, Hans-Wolfgang, Wolfgang Morche, Francis Westall, Dieter K. Fütterer, and Jörg Keller. Chemistry of Volcanic Ash Layers from the Southern Atlantic. PANGAEA, 1991.

MLA (9th ed.) Citation

Hubberten, Hans-Wolfgang, et al. Chemistry of Volcanic Ash Layers from the Southern Atlantic. PANGAEA, 1991.