Cita APA (7a ed.)

Settele, J., Penev, L., & Georgiev, T. (2010). Atlas of biodiversity risk. Pensoft.

Cita Chicago Style (17a ed.)

Settele, Josef, Lyubomir Penev, y Teodor Georgiev. Atlas of Biodiversity Risk. Sofia: Pensoft, 2010.

Cita MLA (9a ed.)

Settele, Josef, et al. Atlas of Biodiversity Risk. Pensoft, 2010.