National water well Association. (1985). Well drilling manual. National water well Association.
Citação norma ChicagoNational water well Association. Well Drilling Manual. India: National water well Association, 1985.
Citação norma MLANational water well Association. Well Drilling Manual. National water well Association, 1985.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.