Criss, R. E. (1999). Principles of stable isotope distribution. Oxford University Press.
Dyfyniad Arddull ChicagoCriss, R. E. Principles of Stable Isotope Distribution. New York: Oxford University Press, 1999.
Dyfyniad MLACriss, R. E. Principles of Stable Isotope Distribution. Oxford University Press, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.