Cita APA (7th ed.)

Spruth, H. (1967). Erich Hans Utke +: Herbert Spruth. Ostdeutsche Familienkunde.

Cita Chicago (17th ed.)

Spruth, Herbert. "Erich Hans Utke +: Herbert Spruth." Ostdeutsche Familienkunde 1967.

Cita MLA (8th ed.)

Spruth, Herbert. "Erich Hans Utke +: Herbert Spruth." Ostdeutsche Familienkunde, 1967.

Atenció: Aquestes cites poden no estar 100% correctes.