Blended Learning in Higher Education: Framework, Principles, and Guidelines, by D. Randy Garrison and Norman D. Vaughan. San Francisco, CA: Jossey-Bass, 2007. 256 pages, hard coverBlended Learning in Higher Education: Framework, Principles, and Guidelines, by GarrisonD. Randy and VaughanNorman D.. San Francisco, CA: Jossey-Bass, 2007. 256 pages, hard cover.