APA (7th ed.) Zitazioa
ebrary, Inc, Bergerud, A. T., & Gratson, M. W. (1988). Adaptive strategies and population ecology of northern grouse. University of Minnesota Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, A. T. Bergerud, eta Michael W. Gratson. Adaptive Strategies and Population Ecology of Northern Grouse. Minneapolis: University of Minnesota Press, 1988.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Adaptive Strategies and Population Ecology of Northern Grouse. University of Minnesota Press, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.