Huizinga, M. M., Carlisle, A. J., Cavanaugh, K. L., Davis, D. L., Gregory, R. P., Schlundt, D. G., & Rothman, R. L. (2009). Literacy, Numeracy, and Portion-Size Estimation Skills.
Chicago Style aipamenaHuizinga, Mary Margaret, Adam J. Carlisle, Kerri L. Cavanaugh, Dianne L. Davis, Rebecca P. Gregory, David G. Schlundt, and Russell L. Rothman. Literacy, Numeracy, and Portion-Size Estimation Skills. 2009.
MLA aipamenaHuizinga, Mary Margaret, et al. Literacy, Numeracy, and Portion-Size Estimation Skills. 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.