Não informado. (1949). Bulletin of hispanic studies. University of Liverpool, Institute of Hispanic Studies.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of Hispanic Studies. Liverpool, Inglaterra: University of Liverpool, Institute of Hispanic Studies, 1949.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of Hispanic Studies. University of Liverpool, Institute of Hispanic Studies, 1949.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.