Dyfyniad APA

Ramírez Salas, M. (2004). English Teachers as materials developers. Universidad de Costa Rica.

Dyfyniad Arddull Chicago

Ramírez Salas, Marlene. English Teachers as Materials Developers. Universidad de Costa Rica, 2004.

Dyfyniad MLA

Ramírez Salas, Marlene. English Teachers as Materials Developers. Universidad de Costa Rica, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.