Cita APA (7a ed.)

Delta Education (Firm) & Maineri, S. A. (2006). Delta science readers for middle school (3rd ed.). Delta Education.

Cita Chicago Style (17a ed.)

Delta Education (Firm) y Sarah A. Maineri. Delta Science Readers for Middle School. 3rd ed. Nashua, NH: Delta Education, 2006.

Cita MLA (9a ed.)

Delta Education (Firm) y Sarah A. Maineri. Delta Science Readers for Middle School. 3rd ed. Delta Education, 2006.