Cita APA (7th ed.)

Mittermeier, R. A., Mittermeier, C. G., Myers, N., & Robles Gil, P. (1999). Hotspots: Earth's biologically richest and most endangered terrestrial ecoregions. CEMEX Conservation International.

Cita Chicago (17th ed.)

Mittermeier, Russell A., Cristina Goettsch Mittermeier, Norman Myers, i Patricio Robles Gil. Hotspots: Earth's Biologically Richest and Most Endangered Terrestrial Ecoregions. [Mexico City]: CEMEX Conservation International, 1999.

Cita MLA (9th ed.)

Mittermeier, Russell A., et al. Hotspots: Earth's Biologically Richest and Most Endangered Terrestrial Ecoregions. CEMEX Conservation International, 1999.