Distribution of extra-galactic nebulae
By: by Edwin Hubble ...
Series: Contributions from the Mount Wilson Observatory.; no. 485
Published: 1934
Place of publication: [Chicago
Language: eng
Number of pages: 69
Subjects: Nebulae.; Milky Way.
Other titles: Extra-galactic nebulae.
Notes: Cover-title.
At head of title: Carnegie Institution of Washington.
"Reprinted from the Astrophysical Journal, vol. LXXIX, 1934."