Cita APA (7th ed.)

Roters, E., & Fritsch, E. (1972). Ernst Fritsch.

Cita Chicago (17th ed.)

Roters, Eberhard, i Ernst Fritsch. Ernst Fritsch. Berlin, 1972.

Cita MLA (8th ed.)

Roters, Eberhard, i Ernst Fritsch. Ernst Fritsch. 1972.