1. Porosity of, and bacterial invasion through the shell of the hen's egg;Haines;J. Hyg.,1940
2. Oil-protected shell eggs;Mailman;U.S. Egg Poultry Mag.,1944
3. Studies of various factors affecting permeability of birds' eggshell;Romanoff;Food Research,1943
4. The Avian Egg;Romanoff,1949
5. Bacteriological studies on the eggshell;Stuart;U.S. Egg Poultry Mag.,1943