ebrary, Inc, & Doran, R. L. (2002). Science educator's guide to laboratory assessment (2nd enlarged ed.). National Science Teachers Association.

ebrary, Inc, and Rodney L. Doran. Science Educator's Guide to Laboratory Assessment. 2nd enlarged ed. Arlington, Va.: National Science Teachers Association, 2002.

ebrary, Inc, and Rodney L. Doran. Science Educator's Guide to Laboratory Assessment. 2nd enlarged ed. National Science Teachers Association, 2002.