Cita APA (7th ed.)
Spärck, R. (1933). Treaarsexpeditionen til Christian den X's Land 1931/34: Contributions to the animal ecology of the Franz Joseph Fjord and adjacent East Greenland waters. Reitzel.
Cita Chicago (17th ed.)
Spärck, Ragnar. Treaarsexpeditionen Til Christian Den X's Land 1931/34: Contributions to the Animal Ecology of the Franz Joseph Fjord and Adjacent East Greenland Waters. København: Reitzel, 1933.
Cita MLA (9th ed.)
Spärck, Ragnar. Treaarsexpeditionen Til Christian Den X's Land 1931/34: Contributions to the Animal Ecology of the Franz Joseph Fjord and Adjacent East Greenland Waters. Reitzel, 1933.
Atenció: Aquestes cites poden no estar 100% correctes.