APA (7th ed.) Citation

E.C, R. P. (1880). Princess Milena of Montenegro.

Chicago Style (17th ed.) Citation

E.C, Rotary Photo. Princess Milena of Montenegro. 1880.

MLA (8th ed.) Citation

E.C, Rotary Photo. Princess Milena of Montenegro. 1880.

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