Cita APA (7a ed.)
Hagen, R., & Hagen, R. What Great Paintings Say: Faces of Power. Taschen.
Cita estilo Chicago (17a ed.)
Hagen, Rose-Marie, y Rainer Hagen. What Great Paintings Say: Faces of Power. Colonia, Alemania: Taschen.
Cita MLA (9a ed.)
Hagen, Rose-Marie, y Rainer Hagen. What Great Paintings Say: Faces of Power. Taschen.
警告：這些引文格式不一定是100％准確.