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Lua i Stíl Chicago (17ú heag.)Walker, Deborah Klein. Socioemotional Measures for Preschool and Kindergarten Children. 1st ed.]. San Francisco: Jossey-Bass, 1973.
Lua MLA (9ú heag.)Walker, Deborah Klein. Socioemotional Measures for Preschool and Kindergarten Children. 1st ed.]. Jossey-Bass, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.