Cross, G. (2000). On the Edge: Stage 3 (1000 Headwords). Oxford: Oxford Univ. Press.
Dyfyniad Arddull ChicagoCross, Gillian. On the Edge: Stage 3 (1000 Headwords). Oxford: Oxford Univ. Press, 2000.
Dyfyniad MLACross, Gillian. On the Edge: Stage 3 (1000 Headwords). Oxford: Oxford Univ. Press, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.