APA Citation

Zwicky, F. (1939). On the Formation of Clusters of Nebulae and the Cosmological Time Scale.

Citação norma Chicago

Zwicky, F. On the Formation of Clusters of Nebulae and the Cosmological Time Scale. 1939.

MLA Citation

Zwicky, F. On the Formation of Clusters of Nebulae and the Cosmological Time Scale. 1939.

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