Crowther, J. G. 1899- British scientists of the twentieth century/ J. G. Crowther. - London: Routledge & K. Paul, [1952]. - xiv, 320 p.: ports., 22 cm. Includes bibliographies. LCCN: 52003699 //r84 Nat. Bib. No.: GB52-8245 Subjects--Topical Terms: Scientists--Great Britain. Dewey Class. No.: 510.9 / C953b