Cita APA (7th ed.)

Hempel, G. (1993). Weddell sea ecology: Results of EPOS European polarstern study. Springer.

Cita Chicago (17th ed.)

Hempel, Gotthilf. Weddell Sea Ecology: Results of EPOS European Polarstern Study. Berlín: Springer, 1993.

Cita MLA (9th ed.)

Hempel, Gotthilf. Weddell Sea Ecology: Results of EPOS European Polarstern Study. Springer, 1993.