APA (7th ed.) Citation

Saha, A. W., & Wollheim, D. A. (1973). The 1973 annual world's best SF. Gollancz.

Chicago Style (17th ed.) Citation

Saha, Arthur W., and Donald A. Wollheim. The 1973 Annual World's Best SF. London: Gollancz, 1973.

MLA (8th ed.) Citation

Saha, Arthur W., and Donald A. Wollheim. The 1973 Annual World's Best SF. Gollancz, 1973.