Cita APA (7th ed.)
Steffen, K. (1986). Atlas of the sea ice types: Deformation processes and openings in the ice. North Water Project. Geograph. Inst., Eidgenöss. Techn. Hochschule; Verl. d. Fachvereine.
Cita Chicago (17th ed.)
Steffen, Konrad. Atlas of the Sea Ice Types: Deformation Processes and Openings in the Ice. North Water Project. Zürich: Geograph. Inst., Eidgenöss. Techn. Hochschule; Verl. d. Fachvereine, 1986.
Cita MLA (9th ed.)
Steffen, Konrad. Atlas of the Sea Ice Types: Deformation Processes and Openings in the Ice. North Water Project. Geograph. Inst., Eidgenöss. Techn. Hochschule; Verl. d. Fachvereine, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.