Cita APA (7th ed.)
Hørring, R., & Salomonsen, F. (1941). Further Records of rare or new Greenland birds. Reitzel.
Cita Chicago (17th ed.)
Hørring, Richard, i Finn Salomonsen. Further Records of Rare or New Greenland Birds. København: Reitzel, 1941.
Cita MLA (9th ed.)
Hørring, Richard, i Finn Salomonsen. Further Records of Rare or New Greenland Birds. Reitzel, 1941.
Atenció: Aquestes cites poden no estar 100% correctes.