Felsen, I. V. (1992). The influences of age, intelligence, gender, and socio-economic status on preceived competencies of gifted and talented children. Universität Hamburg.
Chicago-viite (17. p.)Felsen, Irit V. The Influences of Age, Intelligence, Gender, and Socio-economic Status on Preceived Competencies of Gifted and Talented Children. Germany: Universität Hamburg, 1992.
MLA-viite (8. p.)Felsen, Irit V. The Influences of Age, Intelligence, Gender, and Socio-economic Status on Preceived Competencies of Gifted and Talented Children. Universität Hamburg, 1992.
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