VandenBerg, D. M. (1971). The written language of deaf children: A comparative study. New Zealand Council for Educational Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)VandenBerg, D. Marjorie. The Written Language of Deaf Children: A Comparative Study. Wellington, [N.Z.]: New Zealand Council for Educational Research, 1971.
Παραπομπή σε μορφή MLA (8th εκδ.)VandenBerg, D. Marjorie. The Written Language of Deaf Children: A Comparative Study. New Zealand Council for Educational Research, 1971.
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