APA (7th ed.) Citation

Ridsdale, E. A., & Lewis, . H. K. (1889). Cosmic evolution: Being speculations on the origin of our environment. H.K. Lewis.

Chicago Style (17th ed.) Citation

Ridsdale, E. A., and H. K. Lewis. Cosmic Evolution: Being Speculations on the Origin of Our Environment. London: H.K. Lewis, 1889.

MLA (9th ed.) Citation

Ridsdale, E. A., and H. K. Lewis. Cosmic Evolution: Being Speculations on the Origin of Our Environment. H.K. Lewis, 1889.