APA (7th ed.) Citation

Derleth, A. W., & Gil Ojeda. (1977). La huella de Cthulhu. Felmer.

Chicago Style (17th ed.) Citation

Derleth, August William, and Gil Ojeda. La Huella De Cthulhu. Madrid: Felmer, 1977.

MLA (9th ed.) Citation

Derleth, August William, and Gil Ojeda. La Huella De Cthulhu. Felmer, 1977.