Cita APA (7a ed.)

Orlick, B. G., & Riege, R. (1939). Frontballade. Adolf Sponholtz Verlag.

Cita Chicago Style (17a ed.)

Orlick, Bruno Gerhard, y Rudolf Riege. Frontballade. Hannover: Adolf Sponholtz Verlag, 1939.

Cita MLA (9a ed.)

Orlick, Bruno Gerhard, y Rudolf Riege. Frontballade. Adolf Sponholtz Verlag, 1939.