Karweit, N. L., Slavin, R. E., & Wasik, B. A. (1994). Preventing early school failure: Research, policy, and practice. Allyn and Bacon.
Cita Chicago (17th ed.)Karweit, Nancy L., Robert E. Slavin, i Barbara A. Wasik. Preventing Early School Failure: Research, Policy, and Practice. Boston: Allyn and Bacon, 1994.
Cita MLA (9th ed.)Karweit, Nancy L., et al. Preventing Early School Failure: Research, Policy, and Practice. Allyn and Bacon, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.