Dyfyniad APA

International Journal of Tryptophan Research. Cambridge University Press.

Dyfyniad Arddull Chicago

International Journal of Tryptophan Research. Cambridge University Press.

Dyfyniad MLA

International Journal of Tryptophan Research. Cambridge University Press.

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