American Society for Testing and Materials, ASTM Committee D-4 on Road and Paving Materials, Smith, P. C., Johnson, A. I., Fisher, C. P., & Womack, L. M. (1968). The Use of nuclear meters in soils investigations a summary of worldwide research and practice / by P. C. Smith, A. I. Johnson, C. P. Fisher, and L. M. Womack: A summary of worldwide research and practice. American Society for Testing and Materials.
Chicago Style (17th ed.) CitationAmerican Society for Testing and Materials, ASTM Committee D-4 on Road and Paving Materials, Preston Clark Smith, A. I. Johnson, C. P. Fisher, and L. M. Womack. The Use of Nuclear Meters in Soils Investigations a Summary of Worldwide Research and Practice / by P. C. Smith, A. I. Johnson, C. P. Fisher, and L. M. Womack: A Summary of Worldwide Research and Practice. Philadelphia, Pa.: American Society for Testing and Materials, 1968.
MLA (9th ed.) CitationAmerican Society for Testing and Materials, et al. The Use of Nuclear Meters in Soils Investigations a Summary of Worldwide Research and Practice / by P. C. Smith, A. I. Johnson, C. P. Fisher, and L. M. Womack: A Summary of Worldwide Research and Practice. American Society for Testing and Materials, 1968.