Llanas, A. (1995). Atlas 4 (workbook): Learning-centered communication. Boston, MA: Heinle & Heinle.
Dyfyniad Arddull ChicagoLlanas, Angela. Atlas 4 (workbook): Learning-centered Communication. Boston, MA: Heinle & Heinle, 1995.
Dyfyniad MLALlanas, Angela. Atlas 4 (workbook): Learning-centered Communication. Boston, MA: Heinle & Heinle, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.