F. Himmelweit (ed.) (1960): The Collected Papers of Paul Ehrlich vol. 3: Chemotherapy. London: Pergamon Press. p. 611. ↩
WorldCat item record https://www.worldcat.org/oclc/180505114 ↩
WorldCat item record https://www.worldcat.org/oclc/006366751 ↩