Lua APA (7ú heag.)

Osborn, F. H. 1. (1951). Preface to eugenics. Harper.

Lua i Stíl Chicago (17ú heag.)

Osborn, Frederick Henry 1889. Preface to Eugenics. New York: Harper, 1951.

Lua MLA (9ú heag.)

Osborn, Frederick Henry 1889. Preface to Eugenics. Harper, 1951.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.