Lua APA (7ú heag.)

Conklin, G., & Asimov, I. (1972). Possible tomorrows: Science fiction. Sidgwick and Jackson.

Lua i Stíl Chicago (17ú heag.)

Conklin, Groff, agus Isaac Asimov. Possible Tomorrows: Science Fiction. London: Sidgwick and Jackson, 1972.

Lua MLA (8ú heag.)

Conklin, Groff, agus Isaac Asimov. Possible Tomorrows: Science Fiction. Sidgwick and Jackson, 1972.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.