Lua APA (7ú heag.)
Forsman, E. D. (2011). Population demography of northern spotted owls. University of California Press.
Lua i Stíl Chicago (17ú heag.)
Forsman, Eric D. Population Demography of Northern Spotted Owls. Berkeley: University of California Press, 2011.
Lua MLA (9ú heag.)
Forsman, Eric D. Population Demography of Northern Spotted Owls. University of California Press, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.