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Publications by Orvis C. Irwin

Research on Speech Sounds for the First Six Months of Life.

Psychological Bulletin
Philosophy of SciencePsychologyHistory
1941English

The Developmental Status of Speech Sounds of Ten Feeble-Minded Children

Child Development
DevelopmentalChild HealthEducational PsychologyPerinatologySocial WorkPediatricsEducation
1942English

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