Victor, E. (1980). Science for the elementary school (4th ed.). Macmillan.
Chicago Style aipamenaVictor, Edward. Science for the Elementary School. 4th ed. New York: Macmillan, 1980.
MLA aipamenaVictor, Edward. Science for the Elementary School. 4th ed. Macmillan, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.