Não informado. (1938). British Chemical and Physiological Abstracts. Bureau of Chemical Abstracts.
Chicago-referens (17:e uppl.)Não informado. British Chemical and Physiological Abstracts. London: Bureau of Chemical Abstracts, 1938.
MLA-referens (8:e uppl.)Não informado. British Chemical and Physiological Abstracts. Bureau of Chemical Abstracts, 1938.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.