Não informado. (1952). Researches on Population Ecology. Society of Population Ecology.
Lua i Stíl Chicago (17ú heag.)Não informado. Researches on Population Ecology. Tokyo: Society of Population Ecology, 1952.
Lua MLA (8ú heag.)Não informado. Researches on Population Ecology. Society of Population Ecology, 1952.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.