Georgetown Observatory Monograph Georgetown College Observatory (Washington, D.C.) Published: 1952 Total Pages: 514 Get eBook
Monograph Georgetown College Observatory (Washington, D.C.) Published: 1968 Total Pages: 110 Get eBook
Georgetown Observatory Monograph Georgetown College Observatory (Washington, D.C.) Published: 1952 Total Pages: 514 Get eBook
The Determination of Geodetic Positions and Distances by Means of Asolar Eclipse United States. Aeronautical Chart and Information Center Published: 1952 Total Pages: 164 Get eBook
Monograph United States. National Capital Park and Planning Commission Published: 1950 Total Pages: 292 Get eBook
Service Monographs of the United States Government Brookings Institution. Institute for Government Research Published: 1926 Total Pages: 126 Get eBook
Union List of Selected Serials in the University of Michigan Library Published: 1985 Total Pages: 814 Get eBook
