APA Citation

Shapley, H. 1. (1969). Source book in astronomy, 1900-1950. Cambridge, Mass.: Harvard University Press.

Chicago Style Citation

Shapley, Harlow 1885-1972. Source Book in Astronomy, 1900-1950. Cambridge, Mass.: Harvard University Press, 1969.

MLA Citation

Shapley, Harlow 1885-1972. Source Book in Astronomy, 1900-1950. Cambridge, Mass.: Harvard University Press, 1969.

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