1. The Examination and Typing of Bloodstains in the Crime Laboratory;Culliford,1971
2. Biology Methods Manual;Metropolitan Police Forensic Science Laboratory,1978
3. Handbook of Enzyme Electrophoresis in Human Genetics;Harris,1976
4. Handbook of Enzyme Electrophoresis in Human Genetics;Harris,1976
5. Handbook of Enzyme Electrophoresis in Human Genetics;Harris,1976