APA (7th ed.) Citation

De Camp, L. S., De Camp, C. C., & Forberg, A. (1973). Tales beyond time: From fantasy to science fiction. Lothrop, Lee & Shepard.

Chicago Style (17th ed.) Citation

De Camp, L. Sprague, Catherine Crook De Camp, and Ati Forberg. Tales Beyond Time: From Fantasy to Science Fiction. New York: Lothrop, Lee & Shepard, 1973.

MLA (9th ed.) Citation

De Camp, L. Sprague, et al. Tales Beyond Time: From Fantasy to Science Fiction. Lothrop, Lee & Shepard, 1973.