Dobson, M. A., & Frid, C. A. (2009). Ecology of aquatic systems (2nd ed.).
Dyfyniad Arddull ChicagoDobson, Michael; Author, and Chris; Author Frid. Ecology of Aquatic Systems. 2nd ed. Oxford, Oxford University Press, 2009.
Dyfyniad MLADobson, Michael; Author, and Chris; Author Frid. Ecology of Aquatic Systems. 2nd ed. 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.