Dyfyniad APA

Renner, J. W., & Stafford, D. G. (1979). Teaching science in the elementary school (3d ed.). Harper & Row.

Dyfyniad Arddull Chicago

Renner, John Wilson, and Don G. Stafford. Teaching Science in the Elementary School. 3d ed. New York: Harper & Row, 1979.

Dyfyniad MLA

Renner, John Wilson, and Don G. Stafford. Teaching Science in the Elementary School. 3d ed. Harper & Row, 1979.

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