Harvard School of Public Health. (1943). Virus and rickettsial diseases: With especial consideration of their public health significance; a symposium held at the Harvard school of public health, June 12-June 17, 1939. Harvard university press.

Harvard School of Public Health. Virus and Rickettsial Diseases: With Especial Consideration of Their Public Health Significance; a Symposium Held at the Harvard School of Public Health, June 12-June 17, 1939. Cambridge, Mass.: Harvard university press, 1943.

Harvard School of Public Health. Virus and Rickettsial Diseases: With Especial Consideration of Their Public Health Significance; a Symposium Held at the Harvard School of Public Health, June 12-June 17, 1939. Harvard university press, 1943.