Cita APA (7a ed.)

(2006). Problem Solving in the PISA & TIMSS 2003 Assessments. U.S. Department of Education.

Cita Chicago Style (17a ed.)

Problem Solving in the PISA & TIMSS 2003 Assessments. U.S. Department of Education, 2006.

Cita MLA (9a ed.)

Problem Solving in the PISA & TIMSS 2003 Assessments. U.S. Department of Education, 2006.