APA (7th ed.) Citation

Troia, A., Barone, R., Troia, A., & Barone, R. Charophytes for description and monitoring of inland waters in Sicily.

Chicago Style (17th ed.) Citation

Troia, Angelo, Rossella Barone, A. Troia, and R. Barone. Charophytes for Description and Monitoring of Inland Waters in Sicily.

MLA (9th ed.) Citation

Troia, Angelo, et al. Charophytes for Description and Monitoring of Inland Waters in Sicily.