APA (7th ed.) Citation

Shapley, H. (1922). The galactic system ([Reprinted from Nature, October 21 and 28, 1922].).

Chicago Style (17th ed.) Citation

Shapley, Harlow. The Galactic System. [Reprinted from Nature, October 21 and 28, 1922]. [Edinburgh], 1922.

MLA (9th ed.) Citation

Shapley, Harlow. The Galactic System. [Reprinted from Nature, October 21 and 28, 1922]. 1922.

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