Não informado. (1970). Polish Psychological Bulletin. Polish Academy of Sciences, Committee for Psychological Sciences.
Lua i Stíl Chicago (17ú heag.)Não informado. Polish Psychological Bulletin. Warsaw: Polish Academy of Sciences, Committee for Psychological Sciences, 1970.
Lua MLA (8ú heag.)Não informado. Polish Psychological Bulletin. Polish Academy of Sciences, Committee for Psychological Sciences, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.