Observations of the Orion and Aquila rings : Canada. Dep. of Energy, Mines and Resources, Observatories Branch ; By David Crampton and John Byl

von Crampton, David
Veröffentlicht 1971

Spectroscopic observations of stars in HII regions : National Research Council of Canada, Radio and Electrical Engineering Division, Astrophysics Branch ; By David Crampton and W...

von Crampton, David
Veröffentlicht 1974

˜Theœ space distribution of quasars : [proceedings of a workshop held as part of the 75th anniversary celebrations of the National Research Council of Canada, at the Dominion Ast...

Veröffentlicht 1991

A catalogue of H [Gamma] measures by R. M. Petrie : National Research Council of Canada, Radio and Electrical Engineering Division, Astrophysics Branch ; By D. Crampton, A. Leir,...

von Crampton, David
Veröffentlicht 1973

The space distribution of quasars : [proceedings of a workshop held as part of the 75th anniversary celebrations of the National Research Council of Canada, at the Dominion Astro...

Veröffentlicht 1991