APA (7th ed.) Citation

Morris, H. M. (1963). The twilight of evolution. Baker.

Chicago Style (17th ed.) Citation

Morris, Henry M. The Twilight of Evolution. Grand Rapids, Mich: Baker, 1963.

MLA (8th ed.) Citation

Morris, Henry M. The Twilight of Evolution. Baker, 1963.

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