Collino, G. E., Aderman, E. M., & Askov, E. N. (1988). Literacy and job performance: A perspective. Institute for the Study of Adult Literacy, Pennsylvania State University.
Dyfyniad Arddull ChicagoCollino, Gladys E., Elizabeth M. Aderman, and Eunice N. Askov. Literacy and Job Performance: A Perspective. University Park, Pa.: Institute for the Study of Adult Literacy, Pennsylvania State University, 1988.
Dyfyniad MLACollino, Gladys E., et al. Literacy and Job Performance: A Perspective. Institute for the Study of Adult Literacy, Pennsylvania State University, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.