APA (7th ed.) Citation

University, U. c. S. L. (1890). Queen Olga and Crown Princess Sophia of Greece.

Chicago Style (17th ed.) Citation

University, Unknown creator; St. Louis. Queen Olga and Crown Princess Sophia of Greece. 1890.

MLA (8th ed.) Citation

University, Unknown creator; St. Louis. Queen Olga and Crown Princess Sophia of Greece. 1890.

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