APA (7th ed.) Citation

(1979). A source book in astronomy and astrophysics: 1900 - 1975. Harvard Univ. Press.

Chicago Style (17th ed.) Citation

A Source Book in Astronomy and Astrophysics: 1900 - 1975. Cambridge, Mass. [u.a.]: Harvard Univ. Press, 1979.

MLA (9th ed.) Citation

A Source Book in Astronomy and Astrophysics: 1900 - 1975. Harvard Univ. Press, 1979.

Warning: These citations may not always be 100% accurate.