Cita APA (7a ed.)
Morris, H. M. (1963). The twilight of evolution. Baker Book House.
Cita Chicago Style (17a ed.)
Morris, Henry Madison. The Twilight of Evolution. Grand Rapids: Baker Book House, 1963.
Cita MLA (9a ed.)
Morris, Henry Madison. The Twilight of Evolution. Baker Book House, 1963.
Precaución: Estas citas no son 100% exactas.