Cita APA (7th ed.)

Barnekow, D. J. (2009). 3-D graphic organizers: 20 innovative, easy-to-make learning tools that reinforce key concepts and motivate all students! (1a. ed.). Scholastic.

Cita Chicago (17th ed.)

Barnekow, Daniel J. 3-D Graphic Organizers: 20 Innovative, Easy-to-make Learning Tools That Reinforce Key Concepts and Motivate All Students! 1a. ed. Nueva York: Scholastic, 2009.

Cita MLA (9th ed.)

Barnekow, Daniel J. 3-D Graphic Organizers: 20 Innovative, Easy-to-make Learning Tools That Reinforce Key Concepts and Motivate All Students! 1a. ed. Scholastic, 2009.