Lua APA (7ú heag.)

Kelty, M. G. How our civilization began. Ginn and Co..

Lua i Stíl Chicago (17ú heag.)

Kelty, Mary G. How Our Civilization Began. Boston ; New York, [etc]: Ginn and Co..

Lua MLA (8ú heag.)

Kelty, Mary G. How Our Civilization Began. Ginn and Co..

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