Journal of Shanghai Normal University (Natural Sciences) | Academic Journals Center of Shanghai Normal University. Cambridge University Press.
Dyfyniad Arddull ChicagoJournal of Shanghai Normal University (Natural Sciences) | Academic Journals Center of Shanghai Normal University. Cambridge University Press.
Dyfyniad MLAJournal of Shanghai Normal University (Natural Sciences) | Academic Journals Center of Shanghai Normal University. Cambridge University Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.