Geodynamics Service of Canada.
Pst Observations ot Time and Latitude- Pzt Observations of Time and Latitude
- Pzt Observations of Time and Latitude Ottawa and Calgary, 1976
- Pzt Observations of Time and Latitude Ottawa and Calgary, 1978
- Pzt Observations of Time and Latitude Ottawa and Calgary, 1979
- Pzt Observations of Time and Latitude Ottawa and Calgary, 1980-81
- Pzt Observations of Time and Latitude, Ottawa and Calgary, 1974
- Tidal Gravity Measurements at Ottawa and Alert, 1967-1974