1. The bacteriological examination of Molluscan Shellfish;Clegg;J. Hyg. Camb.,1947
2. Purification of oysters in simple pits;Cole;M.A.F.F. Fish. Invest,1954
3. Investigations of the pollution and sanitary conditions of the Potomac watershed;Cumming;U.S. Publ. Health Service, Hyg. Lab. Bull.,1916
4. Report on mussel purification;Dodgson;M.A.F.F. Fish Invest.,1928