Não informado. (1920). Discovery: The magazine of scientific progress. Professional and Industrial Publishing.
Style de citation Chicago (17e éd.)Não informado. Discovery: The Magazine of Scientific Progress. London: Professional and Industrial Publishing, 1920.
Style de citation MLA (8e éd.)Não informado. Discovery: The Magazine of Scientific Progress. Professional and Industrial Publishing, 1920.
Attention : ces citations peuvent ne pas être correctes à 100%.