Cita APA

Ryman, G., & Ryman, G. A fall of angels, or, on the possibility of life under extreme conditions.

Citación estilo Chicago

Ryman, Geoff, y Geoff Ryman. A Fall of Angels, Or, On the Possibility of Life Under Extreme Conditions.

Cita MLA

Ryman, Geoff, y Geoff Ryman. A Fall of Angels, Or, On the Possibility of Life Under Extreme Conditions.