APA Citation

Klauber, E. (. Portrait of Mary Helen [unknown last name]. University of Alabama Libraries.

Chicago Style Citation

Klauber, E. (Edward). Portrait of Mary Helen [unknown Last Name]. University of Alabama Libraries.

MLA Citation

Klauber, E. (Edward). Portrait of Mary Helen [unknown Last Name]. University of Alabama Libraries.

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