Cita APA (7th ed.)
Tout, D., Hoogland, K., & Díez-Palomar, J. (2025). Improving the Quality of Numeracy Skills: Progressing from Level 2 to Level 4 on the PIAAC Cycle 2 Proficiency. An ETS Return on Investment Study: Phase 1. ETS Research Memorandum. RM-25-02. ETS Research Institute.
Cita Chicago (17th ed.)
Tout, Dave, Kees Hoogland, i Javier Díez-Palomar. "Improving the Quality of Numeracy Skills: Progressing from Level 2 to Level 4 on the PIAAC Cycle 2 Proficiency. An ETS Return on Investment Study: Phase 1. ETS Research Memorandum. RM-25-02." ETS Research Institute 2025.
Cita MLA (9th ed.)
Tout, Dave, et al. "Improving the Quality of Numeracy Skills: Progressing from Level 2 to Level 4 on the PIAAC Cycle 2 Proficiency. An ETS Return on Investment Study: Phase 1. ETS Research Memorandum. RM-25-02." ETS Research Institute, 2025.
Atenció: Aquestes cites poden no estar 100% correctes.