Cita APA (7a ed.)

Eyck, E. (1938). Gladstone. Eugen Renstch.

Cita Chicago Style (17a ed.)

Eyck, Erich. Gladstone. Zürich ; Leipzig: Eugen Renstch, 1938.

Cita MLA (9a ed.)

Eyck, Erich. Gladstone. Eugen Renstch, 1938.