Cita APA (7th ed.)

Bell, R. L. (2008). Teaching the nature of science through process skills: Activities for grades 3-8. Pearson/Allyn and Bacon.

Cita Chicago (17th ed.)

Bell, Randy L. Teaching the Nature of Science Through Process Skills: Activities for Grades 3-8. Boston, MA: Pearson/Allyn and Bacon, 2008.

Cita MLA (9th ed.)

Bell, Randy L. Teaching the Nature of Science Through Process Skills: Activities for Grades 3-8. Pearson/Allyn and Bacon, 2008.