Parker, C. (1984). Critical statement on work and development.
Dyfyniad Arddull ChicagoParker, Collier. Critical Statement on Work and Development. 1984.
Dyfyniad MLAParker, Collier. Critical Statement on Work and Development. 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.