Não informado. Thomas Cawthron memorial lecture. Cawthron Institute of Scientific Research.
Chicago-referens (17:e uppl.)Não informado. Thomas Cawthron Memorial Lecture. Nelson, Nova Zelandia: Cawthron Institute of Scientific Research.
MLA-referens (8:e uppl.)Não informado. Thomas Cawthron Memorial Lecture. Cawthron Institute of Scientific Research.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.