Dyfyniad APA
ebrary, Inc, Dawson, T. E., & Siegwolf, R. T. W. (2007). Stable isotopes as indicators of ecological change. Academic Press.
Dyfyniad Arddull Chicago
ebrary, Inc, Todd E. Dawson, and Rolf T. W. Siegwolf. Stable Isotopes as Indicators of Ecological Change. London ; Burlington, MA: Academic Press, 2007.
Dyfyniad MLA
ebrary, Inc, et al. Stable Isotopes as Indicators of Ecological Change. Academic Press, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.