1. Adapting token economy systems in occupational safety;Brown;Accidient Analysis and Prevention,1978
2. What is an accident?;Figlio,1985
3. The Worker at Work;Fraser,1989
4. Guidelines for presenting quantitative data in HFES publications;Gillan;Human Factors,1998
5. The Incidence of Industrial Accidents upon Individuals with Special Reference to Multiple Accidents;Greenwood,1919