Cita APA (7a ed.)

Grau Triana, P. (1987). San Salvador the forgotten island. Beramar.

Cita Chicago Style (17a ed.)

Grau Triana, Pedro. San Salvador the Forgotten Island. Madrid: Beramar, 1987.

Cita MLA (9a ed.)

Grau Triana, Pedro. San Salvador the Forgotten Island. Beramar, 1987.