Publication Details (including relevant citation information): S. M. N. Moalla, M. E. Soltan, M. N. Rashed and E. M. Fawzy (2006). Evaluation of dilute hydrochloric acid and acid ammonium oxalate as extractants for some heavy metals from Nile River sediments. Chemistry and Ecology. Vol. 22, No. 4, 313-;327.