Lawrence, G. J. L. (1977). Trench wall jack: An apparatus to measure the equivalent elastic modulus of soil. Earthworks and Underground Pipes Div., Structures Dept., Transport and Road Research Laboratory.
Chicago Style (17th ed.) CitationLawrence, G. J. L. Trench Wall Jack: An Apparatus to Measure the Equivalent Elastic Modulus of Soil. Crowthorne, Berkshire: Earthworks and Underground Pipes Div., Structures Dept., Transport and Road Research Laboratory, 1977.
MLA (9th ed.) CitationLawrence, G. J. L. Trench Wall Jack: An Apparatus to Measure the Equivalent Elastic Modulus of Soil. Earthworks and Underground Pipes Div., Structures Dept., Transport and Road Research Laboratory, 1977.
Warning: These citations may not always be 100% accurate.