Dyfyniad APA
ebrary, Inc. (1996). Stemming the tide: Controlling introductions of nonindigenous species by ships' ballast water. National Academy Press.
Dyfyniad Arddull Chicago
ebrary, Inc. Stemming the Tide: Controlling Introductions of Nonindigenous Species by Ships' Ballast Water. Washington, D.C.: National Academy Press, 1996.
Dyfyniad MLA
ebrary, Inc. Stemming the Tide: Controlling Introductions of Nonindigenous Species by Ships' Ballast Water. National Academy Press, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.