[Proceedings].

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111 2 ⊔ ‡aConference on Research in Child Development.
245 1 0 ‡a[Proceedings].
260 ⊔ ⊔ ‡aWashington.
362 0 ⊔ ‡a1st-4th; 1925-1933.
500 ⊔ ⊔ ‡aOn cover: Not for publication.
500 ⊔ ⊔ ‡aAt head of title: National Research Council. Committee on Child Development.
500 ⊔ ⊔ ‡aNo more published.
538 ⊔ ⊔ ‡aMode of access: Internet.
650 ⊔ 0 ‡aChild development ‡xCongresses.
710 2 ⊔ ‡aNational Research Council (U.S.). ‡bCommittee on Child Development.
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