APA (7th ed.) Citation

Abell, G. O. (1974). Clusters of galaxies. UCLA.

Chicago Style (17th ed.) Citation

Abell, G. O. Clusters of Galaxies. Los Angeles, CA: UCLA, 1974.

MLA (9th ed.) Citation

Abell, G. O. Clusters of Galaxies. UCLA, 1974.

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