Jacobson, W. H. (1993). The art and science of teaching orientation and mobility to persons with visual impairments. New York: AFB.
Dyfyniad Arddull ChicagoJacobson, William H. The Art and Science of Teaching Orientation and Mobility to Persons With Visual Impairments. New York: AFB, 1993.
Dyfyniad MLAJacobson, William H. The Art and Science of Teaching Orientation and Mobility to Persons With Visual Impairments. New York: AFB, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.