Echer, E. (2004). Ozone and UV-B radiation anticorrelations at fixed solar zenith angles in southern Brazil. Universidad Nacional Autónoma de México.
Citazione stile Chigago Style (17a edizione)Echer, Ezequiel. Ozone and UV-B Radiation Anticorrelations at Fixed Solar Zenith Angles in Southern Brazil. Universidad Nacional Autónoma de México, 2004.
Citatione MLA (9a ed.)Echer, Ezequiel. Ozone and UV-B Radiation Anticorrelations at Fixed Solar Zenith Angles in Southern Brazil. Universidad Nacional Autónoma de México, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.