Dyfyniad APA

Ord, J. E. (1972). Elementary school social studies for today's children. Harper & Row.

Dyfyniad Arddull Chicago

Ord, John E. Elementary School Social Studies for Today's Children. New York: Harper & Row, 1972.

Dyfyniad MLA

Ord, John E. Elementary School Social Studies for Today's Children. Harper & Row, 1972.

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