Shapley, H. (1929). NOTE ON THE VELOCITIES AND MAGNITUDES OF EXTERNAL GALAXIES.
Čikaški stil citiranjaShapley, Harlow. NOTE ON THE VELOCITIES AND MAGNITUDES OF EXTERNAL GALAXIES. 1929.
MLA način citiranjaShapley, Harlow. NOTE ON THE VELOCITIES AND MAGNITUDES OF EXTERNAL GALAXIES. 1929.
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