Dyfyniad APA

Kramer, K. (1970). Teaching elementary school mathematics (2nd ed.). Allyn and Bacon.

Dyfyniad Arddull Chicago

Kramer, Klaas. Teaching Elementary School Mathematics. 2nd ed. Boston: Allyn and Bacon, 1970.

Dyfyniad MLA

Kramer, Klaas. Teaching Elementary School Mathematics. 2nd ed. Allyn and Bacon, 1970.

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