@article{311884, recid = {311884}, author = {Enger, Sandra K. and Yager, Robert Eugene,}, title = {Assessing student understanding in science : a standards-based K-12 handbook /}, publisher = {Corwin Press,}, address = {Thousand Oaks, Calif. :}, pages = {xi, 178 p. :}, year = {2001}, url = {http://library.usi.edu/record/311884}, }