Svensson, R. (1935). Studies on human intestinal protozoa: Especially with regard to their demonstrability and the connexion between their distribution and hygienic conditions. Ekenäs tryckeri a. b..
Chicago-referens (17:e uppl.)Svensson, Ruth. Studies on Human Intestinal Protozoa: Especially with Regard to Their Demonstrability and the Connexion Between Their Distribution and Hygienic Conditions. [Ekenäs: Ekenäs tryckeri a. b., 1935.
MLA-referens (8:e uppl.)Svensson, Ruth. Studies on Human Intestinal Protozoa: Especially with Regard to Their Demonstrability and the Connexion Between Their Distribution and Hygienic Conditions. Ekenäs tryckeri a. b., 1935.
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