Dyfyniad APA

Martin, D. J., & Janke, D. (1997). Elementary science methods: A constructivist approach. Delmar Publishers.

Dyfyniad Arddull Chicago

Martin, David Jerner, and Delmar Janke. Elementary Science Methods: A Constructivist Approach. Albany: Delmar Publishers, 1997.

Dyfyniad MLA

Martin, David Jerner, and Delmar Janke. Elementary Science Methods: A Constructivist Approach. Delmar Publishers, 1997.

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