| |
|---|
| Utgitt
| Washington : Scientific and Technical Information Office, National Aeronautics and Space Administration; U.S. Govt. Print. Off.] , 1971 [i.e. 1972]
|
|---|
| Omfang
| |
|---|
| Opplysninger
| Papers from the 12th Colloquium of the International Astronomical Union, held in Tucson, Ariz., March 6-10, 1971.
|
|---|
| Emner
| |
|---|
