[Proceedings]
Subtitle: second International Symposium on Problems Related to the Redefinition of North American Vertical Geodetic Networks: Ottawa, Canada, May 26-30, 1980 /sponsors, Canadian Institute of Surveying, Surveys and Mapping Branch, Department of Energy, Mines & Resources; co-sponsors, International Association of Geodesy ... [et al.].. --
Contributors: Canadian Institute of Surveying; Canada. Surveys and Mapping Branch; International Association of Geodesy
Publisher: Canadian Institute of Surveying
Published: 1980
Place of publication: Ottawa
Language: eng
Number of pages: 978
Subjects: Nets (Geodesy) -- Congresses; Geodesy -- North America -- Congresses
Other titles: NAD symposium 1980
Notes: Cover title: NAD symposium 1980.  English or French.