1. American Association of State Highway Transportation Officials (AASHTO) (1982): Materials. 13th ed. Part I. Specifications. Part II. Tests. Washington, D.C. pp 69, 99. American Society for Testing and Materials (ASTM) (1984): “1984 Annual Handbook of ASTM Standards.” Section 4. Construction. Road paving materials. Volume 4.03. Philadelphia.
2. The California Automated Mortality Linkage System (CAMLIS).
3. (1985): Department of Epidemiology and International Health, University of California, San Francisco (personal communication).
4. Asphalt Institute (1982): “Introduction to Asphalt and Some of Its Uses.” Manual series No. 5 (MS-5). 8th ed.
5. (1985): California Department of Health Services, Berkeley, CA.