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2. ASTM, 1972, Underwater soil sampling, testing, and construction control, American Society for Testing and Materials, Special Technical Publication 501, 241 pp.
3. ASTM, 1973, Evaluation of relative density and its role in geotechnical projects involving cohesionless soils, American Society for Testing and Materials, Special Technical Publication 523, 510 pp.
4. ASTM, 1974, 1974 Annual Book of ASTM Standards. Part 19, Natural Building Stones; Soil and Rock, Peats, Mosses and Humus, American Society for Testing and Materials, Philadelphia, 462 pp.
5. Bara, J. P., 1974, Geotechnical properties of marine sediments on the California continental shelf, appendix 4 of California Undersea Aqueduct (CUA) Oceanographic Reconnaissance Study Program, Marine Soils Engineering and Foundations Study, U.S. Bureau of Reclamation, Denver, 126 pp.