APA (7th ed.) Citation

Steck, F. B. (1943). A Tentative Guide to Historical Materials on the Spanish Borderlands. Philadelphia.

Chicago Style (17th ed.) Citation

Steck, Francis Borgia. A Tentative Guide to Historical Materials on the Spanish Borderlands. Philadelphia, 1943.

MLA (8th ed.) Citation

Steck, Francis Borgia. A Tentative Guide to Historical Materials on the Spanish Borderlands. Philadelphia, 1943.

Warning: These citations may not always be 100% accurate.