National Assessment of Educational Progress, P., Educational Testing Service, P., Mullis, I. V. S., Dossey, J. A., Owen, E. H., & Phillips, G. W. (1991). The State of Mathematics Achievement: NAEP's 1990 Assessment of the Nation and the Trial Assessment of the States. Executive Summary.
Chicago Style (17th ed.) CitationNational Assessment of Educational Progress, Princeton, Princeton Educational Testing Service, Ina V. S. Mullis, John A. Dossey, Eugene H. Owen, and Gary W. Phillips. The State of Mathematics Achievement: NAEP's 1990 Assessment of the Nation and the Trial Assessment of the States. Executive Summary. 1991.
MLA (9th ed.) CitationNational Assessment of Educational Progress, Princeton, et al. The State of Mathematics Achievement: NAEP's 1990 Assessment of the Nation and the Trial Assessment of the States. Executive Summary. 1991.