Cita APA (7th ed.)

Sammons, J. L. (1979). Heinrich Heine: A modern biography. Univ. Pr..

Cita Chicago (17th ed.)

Sammons, Jeffrey L. Heinrich Heine: A Modern Biography. Princeton, N.J.: Univ. Pr., 1979.

Cita MLA (8th ed.)

Sammons, Jeffrey L. Heinrich Heine: A Modern Biography. Univ. Pr., 1979.