APA (7th ed.) Citation

Educational Research Service (Arlington, Va.). (2008). ERS focus on grouping for instructional purposes: Professional development resources for the classroom teacher. Educational Research Service.

Chicago Style (17th ed.) Citation

Educational Research Service (Arlington, Va.). ERS Focus on Grouping for Instructional Purposes: Professional Development Resources for the Classroom Teacher. Alexandria, VA: Educational Research Service, 2008.

MLA (9th ed.) Citation

Educational Research Service (Arlington, Va.). ERS Focus on Grouping for Instructional Purposes: Professional Development Resources for the Classroom Teacher. Educational Research Service, 2008.