Jacob, N. (1983). Inventions galore.
Dyfyniad Arddull ChicagoJacob, Nettikkatt. Inventions Galore. 1983.
Dyfyniad MLAJacob, Nettikkatt. Inventions Galore. 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
Jacob, N. (1983). Inventions galore.
Dyfyniad Arddull ChicagoJacob, Nettikkatt. Inventions Galore. 1983.
Dyfyniad MLAJacob, Nettikkatt. Inventions Galore. 1983.