Cita APA (7a ed.)

Guthke, K. S., & Atkins, H. (1990). The last frontier: Imagining other worlds, from the Copernican revolution to modern science fiction. Cornell Univ. Press.

Cita Chicago Style (17a ed.)

Guthke, Karl Siegfried, y Helen Atkins. The Last Frontier: Imagining Other Worlds, from the Copernican Revolution to Modern Science Fiction. Ithaca, NY [u.a.]: Cornell Univ. Press, 1990.

Cita MLA (8a ed.)

Guthke, Karl Siegfried, y Helen Atkins. The Last Frontier: Imagining Other Worlds, from the Copernican Revolution to Modern Science Fiction. Cornell Univ. Press, 1990.

Precaución: Estas citas no son 100% exactas.