By Duke, Daniel Linden..
Washington, D.C. NEA Professional Library, National Education Association 1986 .
56 p. , "Developed under contract no. 400-83-0005 with the National Institute of Education, U.S. Department of Education"--T.p. verso. | "A joint publication of American Association of School Administrators, National Association of Elementary School Principals, National Association of Secondary School Principals, National Education Association." | Distributed to depository libraries in microfiche. 28 cm..

By Stiggins, Richard J..
Washington, D.C. NEA Professional Library 1988 .
32 p. , "Produced in cooperation with the NEA Mastery in Learning Project." 28 cm..
0810602113 (pbk.)