Olson, D. R., & Torrance, N. H. (1985). Literacy, Languagy and Lerning: The Nature and consequences of Reding and writing. Cambridge University Press.
Dyfyniad Arddull ChicagoOlson, David R., and Nancy Hildyard Torrance. Literacy, Languagy and Lerning: The Nature and Consequences of Reding and Writing. Cambridge: Cambridge University Press, 1985.
Dyfyniad MLAOlson, David R., and Nancy Hildyard Torrance. Literacy, Languagy and Lerning: The Nature and Consequences of Reding and Writing. Cambridge University Press, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.