APA Citation

Shapley, H. (1916). Studies of Magnitudes in Star Clusters: II. On the Sequence of Spectral Types in Stellar Evolution.

Chicago Style Citation

Shapley, Harlow. Studies of Magnitudes in Star Clusters: II. On the Sequence of Spectral Types in Stellar Evolution. 1916.

MLA Citation

Shapley, Harlow. Studies of Magnitudes in Star Clusters: II. On the Sequence of Spectral Types in Stellar Evolution. 1916.

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