00328nam a2200097Ia 450000500170000000800410001708200170005810000170007524500900009226000480018220250107154840.0241216s9999||||xx |||||||||||||| ||und||  aREF 526 JOH.  aJohn Saburi. 0aGeoid determination for Estern Canada from Astrogeodetic Deflections of the Vertical.  aNew Brunswick.bSurveying Engineeringc1976