Bulletin of Geography: Physical Geography Series | Nicolaus Copernicus University in Toruń. Cambridge University Press.
Cita Chicago (17th ed.)Bulletin of Geography: Physical Geography Series | Nicolaus Copernicus University in Toruń. Cambridge University Press.
Cita MLA (8th ed.)Bulletin of Geography: Physical Geography Series | Nicolaus Copernicus University in Toruń. Cambridge University Press.
Atenció: Aquestes cites poden no estar 100% correctes.