APA

Butler, O. E., & Torres-Prat, E. (1987). Dawn: Xenogenesis.

MLA

Butler, Octavia E, and Enric Torres-Prat. Dawn: Xenogenesis. , 1987. Print.

CHICAGO

Butler, Octavia E., and Enric Torres-Prat. 1987. Dawn: xenogenesis.

HARVARD

BUTLER, O. E., & TORRES-PRAT, E. (1987). Dawn: xenogenesis.

TURABIAN

Butler, Octavia E., and Enric Torres-Prat. Dawn: Xenogenesis. 1987.