title: Count/mass category acquisition: distributional distinctions in children's speech.
authors.forename: P
authors.initials: P
authors.lastname: Gordon
mesh_terms: D002663:Child Language; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007804:Language Development; D008137:Longitudinal Studies; D008297:Male; D014825:Vocabulary