Steck, F. B. (1943). A Tentative Guide to Historical Materials on the Spanish Borderlands. Philadelphia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSteck, Francis Borgia. A Tentative Guide to Historical Materials on the Spanish Borderlands. Philadelphia, 1943.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSteck, Francis Borgia. A Tentative Guide to Historical Materials on the Spanish Borderlands. Philadelphia, 1943.
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