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ASCE International Conference on Pipeline Engineering and Construction Boston, Mass, American Society of Civil Engineers. Pipeline Division, Inc ebrary, Mohammad Najafi, and Lynn Osborn. Pipelines 2007: Advances and Experiences with Trenchless Pipeline Projects : Proceedings of the ASCE International Conference on Pipeline Engineering and Construction, July 8-11, 2007, Boston, Massachusetts. Reston, Va.: American Society of Civil Engineers, 2007.

ASCE International Conference on Pipeline Engineering and Construction Boston, Mass, et al. Pipelines 2007: Advances and Experiences with Trenchless Pipeline Projects : Proceedings of the ASCE International Conference on Pipeline Engineering and Construction, July 8-11, 2007, Boston, Massachusetts. American Society of Civil Engineers, 2007.