Sverdrup, K. A. (2005). An introduction to the world's oceans. Boston: McGraw-Hill Higher Education.
Dyfyniad Arddull ChicagoSverdrup, Keith A. An Introduction to the World's Oceans. Boston: McGraw-Hill Higher Education, 2005.
Dyfyniad MLASverdrup, Keith A. An Introduction to the World's Oceans. Boston: McGraw-Hill Higher Education, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.