Dyfyniad APA

Victor, E. (1980). Science for the elementary school (4th ed.). Macmillan.

Dyfyniad Arddull Chicago

Victor, Edward. Science for the Elementary School. 4th ed. New York: Macmillan, 1980.

Dyfyniad MLA

Victor, Edward. Science for the Elementary School. 4th ed. Macmillan, 1980.

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