Mullis, I. V. S., Campbell, J. R., Farstrup, A. E., Educational Testing Service., & National Center for Education Statistics. (1993). Executive summary of the NAEP 1992 reading report card for the nation and the states: Data from the national and trial state assessments. Washington, D.C.: The Center : For sale by the U.S. G.P.O., Supt. of Docs..

Mullis, Ina V. S., Jay R. Campbell, Alan E. Farstrup, Educational Testing Service, and National Center for Education Statistics. Executive Summary of the NAEP 1992 Reading Report Card for the Nation and the States: Data From the National and Trial State Assessments. Washington, D.C.: The Center : For sale by the U.S. G.P.O., Supt. of Docs., 1993.

Mullis, Ina V. S., et al. Executive Summary of the NAEP 1992 Reading Report Card for the Nation and the States: Data From the National and Trial State Assessments. Washington, D.C.: The Center : For sale by the U.S. G.P.O., Supt. of Docs., 1993.