Dyfyniad APA
Sund, R. B. (1976). Piaget for educators: A multimedia program. Charles E.Merrill Pub..
Dyfyniad Arddull Chicago
Sund, Robert B. Piaget for Educators: A Multimedia Program. Ohio: Charles E.Merrill Pub., 1976.
Dyfyniad MLA
Sund, Robert B. Piaget for Educators: A Multimedia Program. Charles E.Merrill Pub., 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.