1. Code of Federal Regulations Title 21 Food and Drugs,1977
2. Code of Federal Regulations Title 21 Food and Drugs,1977
3. Thermal inactivation of diphtheria toxoid following drying by sublimation in vacuo;Damjanovic;Journal of Hygiene, Cambridge,1967
4. Preparation of dried acetone-inactivated and heat-phenol-inactivated typhoid vaccines;Division of Immunology, Walter Reed Army Institute of Research;Bulletin of the World Health Organization,1964
5. Statistical Methods in Biological Assay;Finney,1964