Dyfyniad APA

Langford, P. (1987). Concept development in the primary school. Croom Helm.

Dyfyniad Arddull Chicago

Langford, Peter. Concept Development in the Primary School. London ; New York: Croom Helm, 1987.

Dyfyniad MLA

Langford, Peter. Concept Development in the Primary School. Croom Helm, 1987.

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