Dyfyniad APA

Johnston, G. L. (1989). Social studies: In search of a rationale. ACER.

Dyfyniad Arddull Chicago

Johnston, Gerald L. Social Studies: In Search of a Rationale. Hawthorn, Victoria, Australia: ACER, 1989.

Dyfyniad MLA

Johnston, Gerald L. Social Studies: In Search of a Rationale. ACER, 1989.

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