APA引用形式

Hubble,Edwin. (1937). The Observational Approach to Cosmology (1937.). Oxford at the University Press.

シカゴスタイル引用形

Hubble,Edwin. The Observational Approach to Cosmology. 1937. London: Oxford at the University Press, 1937.

MLA引用形式

Hubble,Edwin. The Observational Approach to Cosmology. 1937. Oxford at the University Press, 1937.

警告: この引用は必ずしも正確ではありません.