authors:- Conference on First-Language Acquisition (1961 : Dedham, Mass.).
- Bellugi, Ursula
- Brown, Roger, 1925-
- Social Science Research Council (U.S.). Committee on Intellective Processes Research.
- Society for Research in Child Development
subjects:- Child study -- Conferences.
- Languages -- Psychology -- Conferences.
publishers:- University of Chicago Press,
ISBN:notes:- Originally published, Lafayette, Society for Research in Child Development, 1964.
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