Les progrès del'esprit scientifique en cours de l'histoire. (Communication to the Intern. Congress of the History of Science at Lausanne). Archiv. Internat. d'Hist. des Sciences, 1948, xxvii, no. 2, 222-30

Date:

1948

Reference:

PP/CJS/B.5/16

Part of:

Singer, Charles Joseph and Singer, Dorothea Waley