APA (7th ed.) Citation

Hagos, M., Koeberl, C., & Jourdan, F. (2016). Geochemistry and Geochronology of Phonolitic and Trachytic Source Rocks of the Axum Obelisks and Other Stone Artifacts, Axum, Ethiopia.

Chicago Style (17th ed.) Citation

Hagos, M., C. Koeberl, and Fred Jourdan. Geochemistry and Geochronology of Phonolitic and Trachytic Source Rocks of the Axum Obelisks and Other Stone Artifacts, Axum, Ethiopia. 2016.

MLA (9th ed.) Citation

Hagos, M., et al. Geochemistry and Geochronology of Phonolitic and Trachytic Source Rocks of the Axum Obelisks and Other Stone Artifacts, Axum, Ethiopia. 2016.

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