American Society of Civil Engineers (ASCE). Committee on Manhole Rehabilitation, P. D., & Hughes, J. B. (2009). Manhole inspection and rehabilitation (Second Edition.). Virginia, Estados Unidos: American Society of Civil Engineers (ASCE).
Citación estilo ChicagoAmerican Society of Civil Engineers (ASCE). Committee on Manhole Rehabilitation, Pipeline Division, y Joanne B. Hughes. Manhole Inspection and Rehabilitation. Second Edition. Virginia, Estados Unidos: American Society of Civil Engineers (ASCE), 2009.
Cita MLAAmerican Society of Civil Engineers (ASCE). Committee on Manhole Rehabilitation, Pipeline Division, y Joanne B. Hughes. Manhole Inspection and Rehabilitation. Second Edition. Virginia, Estados Unidos: American Society of Civil Engineers (ASCE), 2009.