APA (7th ed.) Citation

Huerga, E. d. l. (1974). Covadonga (2. ed.). Everest.

Chicago Style (17th ed.) Citation

Huerga, Emiliano de la. Covadonga. 2. ed. León [etc.]: Everest, 1974.

MLA (9th ed.) Citation

Huerga, Emiliano de la. Covadonga. 2. ed. Everest, 1974.