Janes, Harold W.2023-06-072023-06-071977https://unbscholar.lib.unb.ca/handle/1882/34599printen-CAhttp://purl.org/coar/access_right/c_16ecA discussion of factors influencing the accuracy of echo sounders in shallow waterssenior reportHamilton, A.TR-163-SU 1977Geodesy and Geomatics Engineering