Annals: Series on engineering sciences (Academy of Romanian Scientists) | Editura Academiei Oamenilor de Știință din România. Cambridge University Press.
Dyfyniad Arddull ChicagoAnnals: Series on Engineering Sciences (Academy of Romanian Scientists) | Editura Academiei Oamenilor De Știință Din România. Cambridge University Press.
Dyfyniad MLAAnnals: Series on Engineering Sciences (Academy of Romanian Scientists) | Editura Academiei Oamenilor De Știință Din România. Cambridge University Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.