Clegg, M. T., Pitelka, L. F., & Taylor, G. E. (1991). Ecological genetics and air pollution.
Chicago Style aipamenaClegg, Michael T., Louis F. Pitelka, and George E. Taylor. Ecological Genetics and Air Pollution. Newyork, Springer verlag, 1991.
MLA aipamenaClegg, Michael T., et al. Ecological Genetics and Air Pollution. 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.