Lua APA (7ú heag.)
Padilla, M. J., Miaoulis, I., & Cyr, M. (2005). Earth science. Pearson, Prentice hall.
Lua i Stíl Chicago (17ú heag.)
Padilla, Michael J., Ioannis Miaoulis, agus Martha Cyr. Earth Science. New Jersey: Pearson, Prentice hall, 2005.
Lua MLA (9ú heag.)
Padilla, Michael J., et al. Earth Science. Pearson, Prentice hall, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.