APA (7th ed.) Citation

Simak, C. D. (1975). The best of Clifford D. Simak: Ed. by Angus Wells. Sphere Books.

Chicago Style (17th ed.) Citation

Simak, Clifford D. The Best of Clifford D. Simak: Ed. by Angus Wells. London: Sphere Books, 1975.

MLA (9th ed.) Citation

Simak, Clifford D. The Best of Clifford D. Simak: Ed. by Angus Wells. Sphere Books, 1975.

Warning: These citations may not always be 100% accurate.