Dyfyniad APA

Pagel, B. E. J. (1997). Nucleosynthesis and chemical evolution of galaxies. Cambridge University Press.

Dyfyniad Arddull Chicago

Pagel, B. E. J. Nucleosynthesis and Chemical Evolution of Galaxies. Cambridge: Cambridge University Press, 1997.

Dyfyniad MLA

Pagel, B. E. J. Nucleosynthesis and Chemical Evolution of Galaxies. Cambridge University Press, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.