Citazione Stile APA (7a Edizione)

Keller, G. D. (1977). The significance and impact of Gregorio Marañón: Literary criticism, biographies, and historiography. Bilingual Press.

Citazione stile Chigago Style (17a edizione)

Keller, Gary D. The Significance and Impact of Gregorio Marañón: Literary Criticism, Biographies, and Historiography. Jamaica, N.Y.: Bilingual Press, 1977.

Citatione MLA (8a ed.)

Keller, Gary D. The Significance and Impact of Gregorio Marañón: Literary Criticism, Biographies, and Historiography. Bilingual Press, 1977.