Não informado. (1920). Discovery: The magazine of scientific progress. Professional and Industrial Publishing.
Citação do estilo Chicago (17ª ed.)Não informado. Discovery: The Magazine of Scientific Progress. London: Professional and Industrial Publishing, 1920.
Citação MLA (8ª ed.)Não informado. Discovery: The Magazine of Scientific Progress. Professional and Industrial Publishing, 1920.
警告：这些引文格式不一定是100％准确.