Lua APA (7ú heag.)
Friedrich, P. (1970). Proto-indo-european trees: The arboreal system of a prehistoric people. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)
Friedrich, Paul. Proto-indo-european Trees: The Arboreal System of a Prehistoric People. Chicago: University of Chicago Press, 1970.
Lua MLA (9ú heag.)
Friedrich, Paul. Proto-indo-european Trees: The Arboreal System of a Prehistoric People. University of Chicago Press, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.