APA (7th ed.) Citation

Salpeter, E. E. (1981). Galaxies, clusters and invisible mass. Zenodo.

Chicago Style (17th ed.) Citation

Salpeter, Edwin E. Galaxies, Clusters and Invisible Mass. Zenodo, 1981.

MLA (9th ed.) Citation

Salpeter, Edwin E. Galaxies, Clusters and Invisible Mass. Zenodo, 1981.

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