Cita APA (7a ed.)

Ivanov, D. A., Ashraf, A. R., Mosbrugger, V., & Palamarev, E. (2002). Miocene microflora of Deleina (Bulgaria). PANGAEA.

Cita Chicago Style (17a ed.)

Ivanov, Dimiter A., Abdul Rahman Ashraf, Volker Mosbrugger, y E. Palamarev. Miocene Microflora of Deleina (Bulgaria). PANGAEA, 2002.

Cita MLA (9a ed.)

Ivanov, Dimiter A., et al. Miocene Microflora of Deleina (Bulgaria). PANGAEA, 2002.