00000nam 2200000zi 4500 9.927109 CaOODSP 20250114143142 m o d f cr |n||||||||| 230911s1973 oncdab ob f|0| 0 eng d CaOODSP eng rda CaOODSP n-cn--- n-us Fs72-53/1973E-PDF Thompson, E. F., author. Canadian Hydrographic Service, Central Region and United States National Ocean Surveys staff exchange 1973 (July to November) / E.F. Thompson. [Burlington, Ontario] : Canadian Hydrographic Service, Central Region, [1973] 1 online resource (1 volume (various pagings)) : charts, illustrations, maps text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. Hydrographic surveying Great Lakes (North America) Exchange of persons programs Canada. Exchange of persons programs United States. Levés hydrographiques Grands Lacs (Amérique du Nord) Échanges culturels Canada. Échanges culturels États-Unis. Canadian Hydrographic Service, issuing body. PDF 23.30 MB https://publications.gc.ca/collections/collection_2025/eccc/Fs72-53-1973-eng.pdf