1. Conquest of Epidemic Disease;Winslow,1943
2. The Sources and Modes of Infection;Chapin,1910
3. Airborne Contagion and Air Hygiene;Wells,1955
4. Spread of airborne bacteria pathogenic for man, Airborne Microbes;Williams,1967
5. The spread of viruses of the respiratory tract by the airborne route, Airborne Microbes;Tyrrell,1967