American Society of Civil Engineers. Codes and Standards Activities Committee. (2003). Standard guideline for the collection and depiction of existing subsurface utility data ASCE Code and Standards Activity Committee (CSAC). American Society of Civil Engineers.
Chicago Style (17th ed.) CitationAmerican Society of Civil Engineers. Codes and Standards Activities Committee. Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data ASCE Code and Standards Activity Committee (CSAC). Reston, VA: American Society of Civil Engineers, 2003.
MLA (9th ed.) CitationAmerican Society of Civil Engineers. Codes and Standards Activities Committee. Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data ASCE Code and Standards Activity Committee (CSAC). American Society of Civil Engineers, 2003.