Alonzo, A. C., & Wenk Gotwals, A. (2012). Learning progressions in science: Current challenges and future directions (1a. ed.). Sense Publishers.

Alonzo, Alicia C., and Amelia Wenk Gotwals. Learning Progressions in Science: Current Challenges and Future Directions. 1a. ed. Rotterdam: Sense Publishers, 2012.

Alonzo, Alicia C., and Amelia Wenk Gotwals. Learning Progressions in Science: Current Challenges and Future Directions. 1a. ed. Sense Publishers, 2012.