Não informado. (1939). Agenda and Abstracts of the Scientific Meetings. Zoological Society of London.
Chicago-viite (17. p.)Não informado. Agenda and Abstracts of the Scientific Meetings. London: Zoological Society of London, 1939.
MLA-viite (8. p.)Não informado. Agenda and Abstracts of the Scientific Meetings. Zoological Society of London, 1939.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.