Cita APA

Badders, W., & Badders, W. (2007). Houghton Mifflin science: Grade 4 (Teacher's edition.). Boston: Houghton Mifflin.

Citación estilo Chicago

Badders, William, y William Badders. Houghton Mifflin Science: Grade 4. Teacher's edition. Boston: Houghton Mifflin, 2007.

Cita MLA

Badders, William, y William Badders. Houghton Mifflin Science: Grade 4. Teacher's edition. Boston: Houghton Mifflin, 2007.

Precaución: Estas citas no son 100% exactas.