Greipsson, S., & Greipsson,Sigurdur. (2011). Restoration ecology. Jones and Bartlett Publishers.
Chicago Style aipamenaGreipsson, Sigurdur, and Greipsson,Sigurdur. Restoration Ecology. Sudbury, MA: Jones and Bartlett Publishers, 2011.
MLA aipamenaGreipsson, Sigurdur, and Greipsson,Sigurdur. Restoration Ecology. Jones and Bartlett Publishers, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.