1. Bicycle Accidents and Usage among Elementary School Children in the United States;Chlapecka,1975
2. Identification of Specific Problems and Countermeasures Approaches to Enhance Bicycle Safety;Cross,1977
3. Effective Cycling;Forester,1975
4. Cycle Transportation Engineering;Forester,1977
5. An Investigation into Proposed Design Standards and Signs for Cycle Facilities;Gibson,1980