%0 Generic %A Cunningham, D. H. %E Stacey, C. P. %T Army participation in measures taken by the three services for the security of the Gulf of St. Lawrence and the Lower River during the period of German submarine activity, 1942-45 %U http://publications.gc.ca/collections/collection_2016/mdn-dnd/D63-5-30-1949-eng.pdf